10 movies based on leaked classified intelligence take us behind the curtain of espionage, whistleblowing, and the high‑stakes world of secret information. Not every film on this roster earned rave reviews, but each one pulls back the veil on what’s at risk when top‑secret data surfaces and often hints at the motivations that drive a leaker to go public.

Why These 10 Movies Based on Leaked Intelligence Matter

10 Cambridge Five Films

Lured by the Soviet Union’s utopian promises, the Cambridge Five combined their fields of expertise to uncover and leak a variety of classified intelligence that aided the Soviet Union.

The Five were UK Secret Intelligence Service (MI6) operative Kim Philby; Donald Maclean and Guy Burgess of the British Foreign Office (Burgess later worked for the British Embassy in Washington, D.C.); Anthony Blunt, a liaison between the Security Service (MI5) [the UK’s domestic intelligence agency] and MI6; and John Cairncross, who worked at the code‑breaking facility, Bletchley Park, during World War II, and later at roles in various government departments.

When Igor Gouzenko, a Soviet cipher clerk residing in Canada, defected on September 5, 1945, intelligence agencies took a close, hard look at their operations, and, one by one, the Cambridge Five were exposed.

The Five’s exploits have inspired twenty‑four movies, the earliest, Traitor, appearing in 1971. The last (so far), A Spy among Friends, in 2022.

9 Fair Game (2010)

Central Intelligence Agency (CIA) officer Valerie Plame’s identity was leaked to the Chicago‑Sun Times columnist Robert Novak, who made mention of her as “an agency operative” in his July 14, 2003, column for the Washington Post and elsewhere. Plame wrote her own account of the incident in Fair Game: My Life as a Spy, My Betrayal by the White House.

In his review of the 2010 movie Fair Game, film critic Roger Ebert points out that, seeking an excuse to justify a war against Iraq, “the Bush administration… seized on reports that… Niger had sold uranium to Iraq.” However, former ambassador to Niger Joseph Wilson, who was dispatched to find the truth, instead discovered no such evidence. Wilson found that “such sales would be physically impossible.” Nevertheless, the U.S. went to war. When Wilson reported the results of his investigation in a New York Times article, his wife Valerie Plame’s identity as a CIA officer was leaked to Novak to discredit her husband.

According to Ebert, despite the continuing political spin concerning the alleged cause of the U.S.-Iraqi war, Fair Game, “using real names and a good many facts, argues: (1) Saddam Hussein had no WMD; (2) the CIA knew it; (3) the White House knew it; (4) the agenda of Cheney and his White House neocons required an invasion of Iraq no matter what, and (5) therefore, the evidence was ignored and we went to war because of phony claims.”

8 The Fifth Estate (2013)

The Fifth Estate, based on former WikiLeaks spokesman Daniel Domscheit‑Berg’s 2011 exposé Inside WikiLeaks: My Time with Julian Assange at the World’s Most Dangerous Website, reveals some of the leaked intelligence that WikiLeaks brought to light: “Corruption inside a Swiss bank! Police death squads in Kenya! The identities of members of the neo‑Nazi British National Party! A video of two Reuters journalists whose [murders were] committed and covered up by U.S. troops in Iraq! … Posted war logs from Iraq and Afghanistan, along with 250,000 U.S. diplomatic cables.”

Entertainment Weekly’s review of the movie, which does not regard Assange as a heroic figure, also raises an interesting question: “When does the unrestricted flow of information begin to destroy everything it’s out to save?”

7 Snowden (2016)

Based on Luke Harding’s The Snowden Files (2014), Anatoly Kucherena’s Time of the Octopus (2015), and several visits in Russia between director Oliver Stone and Edward Snowden, the 2016 film Snowden focuses on Snowden’s role as a whistleblower.

A former CIA computer intelligence consultant, Snowden exposed thousands of U.S., British, and Australian secrets about U.S. National Security Agency (NSA) surveillance, hacking, and other clandestine operations and their resulting intelligence, which was conducted, at times, by tapping into Facebook, Google, Microsoft, Yahoo, and other Internet companies’ servers.

Other surveillance operations intercepted German Chancellor Angela Merkel’s telephone calls; surveilled French, Italian, Greek, Japanese, South Korean, and Indian embassies and missions; and operated a “continent‑wide surveillance programme” across Latin America. Clandestine operations also “collected and stored almost 200 million text messages per day across the globe.”

6 American Made (2017)

Adler Berriman “Barry” Seal was an American commercial airline pilot who became a major drug smuggler for the Medellín Cartel. When Seal was convicted of smuggling charges, he became an informant for the Drug Enforcement Administration and testified in several major drug trials.

Questioned by the House Judiciary Committee about the origin of information concerning Seal’s 1984 trip to Nicaragua to meet with the cartel, Drug Enforcement Administration agent Ernst Jacobson attributed the leak to the White House. Jacobson implied Oliver North—a deputy director serving the National Security Council—was the source. North denied the charge, as did Washington Times reporter Edmond Jacoby, who’d earlier reported on the drug smuggling. Instead, Jacoby named one of U.S. Representative Dan Daniel’s staffers, who’d since died, as the source’s leak.

“Any notion that American Made is a realistic depiction of [Barry] Seal’s life is entirely preposterous,” declares Liam Gaughan, saying that some parts of the film, based on the life of the American pilot, are sensationalized, while others are fabricated. Although Tom Cruise’s portrayal of Seal as a colorful figure is accurate, the depiction of Seal as having been on friendly terms with Central American drug lords is largely fictional. Although Seal did marry, “most elements of [the couple’s] relationship,” Gaughan declares, “were dramatized for the sake of the film.” Despite these departures from strict accuracy, the film contains enough true material based on leaked intelligence to make its inside look at the connections between the CIA and Seal’s criminal pursuits intriguing.

5 The Post (2017)

The Post dramatizes the struggle of the Washington Post’s publisher Katherine Graham and executive editor Ben Bradlee to decide whether to publish information from the Pentagon Papers, the actual title of which, The History of U.S. Decision‑Making in Vietnam, 1948‑1968, succinctly summarizes the contents of the book. The top‑secret Pentagon review was leaked by military analyst and whistleblower Daniel Ellsberg, whose 1973 trial for espionage resulted in a dismissal of the charges.

The New York Times’s front‑page announcement of the papers had already drawn wide attention, as had indications that the U.S. had gone to war despite the fact that victory was deemed unlikely and that the administrations of Presidents Truman, Eisenhower, Kennedy, and Johnson “misled the public” concerning the extent of U.S. involvement in Vietnam.

After the New York Times published three articles based on the classified material, the U.S. Department of Justice obtained a restraining order forbidding its further publication of the content. However, other newspapers, including the Washington Post, continued to print articles. In June 1971, the Supreme Court unanimously ruled that the documents could be published.

The Post has been criticized for depicting the role of Graham’s newspaper in bringing to light the Pentagon Paper’s damning assessments of American leadership and the conduct of the war since the New York Times did much more than the Washington Post to expose the government’s duplicity and leadership failures. Still, Ebert believes that the movie’s potentially melodramatic sequences are saved by the directorial prowess of Steven Spielberg and the acting skills of Meryl Streep and Tom Hanks.

4 Red Joan (2018)

Melita Norwood seems an unlikely spy, but, as Becky Little’s History article states, the secretary stole nuclear secrets for the Soviet Union throughout World War II and the Cold War. Although Professor Christopher Andrew, a Cambridge historian, uncovered her secret life, Norwood expressed no remorse, saying that “in the same circumstances, I would do the same thing again.” Her desire to spread communism across Eastern Europe and her fear that the nuclear capabilities of the U.S. and Western Europe would go unchecked motivated her leaks.

The sexism of her day helped her evade detection: In the 1930s, “Mona Maund, one of the first female MI5 agents, identified Norwood as a possible spy. But a male superior dismissed her tip because he didn’t think women could be good spies.” Norwood, who died in 2005 at age 93, escaped prosecution on the grounds that the attorney general considered such an action inappropriate.

The 2018 film Red Joan, based on Norwood’s spying, was not well received by reviewers. The Critics Consensus, according to Rotten Tomatoes, was that the movie is “a fascinating real‑life story dramatized in perplexingly dull fashion [that] wastes its tale’s incredible intrigue—as well as the formidable talents of [its star] Judi Dench.”

3 Official Secrets (2019)

Official Secrets, based on whistleblower Katharine Gun, reveals truly incredible intelligence leaks. A translator for Britain’s Government Communications Headquarters (GCHQ), Gun received an email asking her help in compiling “incriminating personal details” concerning UN representatives from six small countries so that they “could be blackmailed into voting for the war in Iraq.” The memorandum, as revealed in a Guardian article, identifies these countries as Angola, Cameroon, Chile, Bulgaria, Guinea, and Pakistan, the last of which was to be subjected to extra focus.

Incensed by the request, Gun printed a copy of the memorandum, which subsequently appeared in The Observer. For blowing the whistle on the GCHQ, Gun was charged under the Official Secrets Act of 1989, but the charges were dropped without explanation.

2 The Courier (2021)

MI6 is the subject of The Courier. Smithsonian Magazine’s Alex Palmer summarizes the opening of the film: Recruited by MI6 agent Dickie Franks, businessman Greville Wynne meets with Lieutenant Colonel Oleg Penkovsky of the Soviet Union’s foreign intelligence agency GRU on the pretext of setting up a meeting to discuss “developing opportunities with foreigners in science and technology.” Subsequent meetings between them, Palmer writes, produced “mountains of [leaked] material [that played] a role in the Cuban Missile Crisis and [landed] both men in prison.”

Unfortunately, as screenwriter Tom O’Connor researched Wynne’s tale, he uncovered one lie after another. Using additional sources, O’Connor pieced together as accurate an account of the clandestine operation as he could but warned that The Courier was not a documentary, and the truth about Wynne and his intelligence work might never be known.

1 Reality (2023)

Reality (2023) is a film about American intelligence specialist Reality Leigh Winner, who was arrested for releasing damning classified information regarding Russian interference in the 2016 American presidential election. According to a TIME Magazine report, it is based on the 2019 play Is This a Room? by Tina Satter and features dialogue pulled directly from Winner’s interrogation by U.S. Federal Bureau of Investigation agents.

The former U.S. Air Force translator, employed in 2017 by the NSA, printed a classified document and mailed it to The Intercept, a news outlet. The report described Russian military intelligence cyberattacks on local election officials and American voting software ahead of the 2016 election, in which Donald Trump ran for president against Hillary Clinton.

Winner said that she was conflicted about her actions. She understood that the document was classified as secret, but she also believed that “the American people… were being led astray.” She was sentenced in 2018 to five years and three months in prison; she was fully “released from custody in November 2021, after spending time in a halfway house [and under] home confinement.” As the TIME report states, “Public opinion on her actions remains divided.”

The world’s powers have to be ready for anything. After all, war could erupt at any moment, and they must stay prepared to fight. That’s why it’s highly probable every nation on the planet has a contingency plan to seize each of its neighbours, just in case.

10 War Plan Red: The American Plan To Invade Canada

There was a period when the United States wasn’t entirely sure which side it would pick in World War II. Officials even mulled the idea of striking at Britain first, and that opening move would have involved an invasion of Canada.

If Britain decided to attack the U.S., the Americans feared the British would set up forces in Canada. To pre‑empt that, they drafted a plan to strike Canada before the British could use it.

The objective was to seize Halifax, denying the British a vital port. To accelerate the takeover, they contemplated bombarding the city with poisonous gas, then pushing on to Niagara Falls to capture its power stations.

From there, the operation would turn into a full‑scale invasion, with troops marching through Quebec, Winnipeg and the nickel mines of western Ontario. Simultaneously, the Navy would swing south to occupy Jamaica, the Bahamas and Bermuda. With British America in their hands, they expected Britain to plead for peace.

The only snag was the possibility of Canada declaring neutrality. If Canadians tried to stay pacifist, the plan called for forceful seizure of ports and territory, ensuring the U.S. would not leave them untouched.

9 Defense Scheme Number One: The Canadian Plan To Invade the US

It sounds wild that the United States drafted a plan to invade Canada, but the reverse is even stranger: Canada had its own secret scheme, and they actually conceived it first.

By 1921, Canadian strategists were already fretting that the Americans might launch an attack. They prepared a pre‑emptive counter‑strike, even sending an officer across the border to scout vulnerable points.

Canada never intended to permanently conquer the United States. Their goal was simply to tie down American forces long enough for Britain to intervene. The plan called for troops to move down the West Coast, while a Quebec contingent would seize Albany and a Maritime force would take Maine.

After catching the U.S. off‑guard, they would retreat across the border, leaving a scorched‑earth trail—bridges, railways, factories, farms—all reduced to ashes, crippling the American war machine and buying time for allies.

If the scheme ever unfolded, the Canadians believed they could count on Japan, France and Mexico to join the effort, each eager to see the “modern Yank” humbled.

8 Operation Dropshot: The American Plan To Nuke The Soviet Union

If history had taken a different turn, the Cold War might never have been “cold.” Instead, it could have ignited into a full‑blown nuclear apocalypse that would have erased Russia from the map.

In the early days, the United States was the sole holder of atomic weapons and drafted multiple plans to unleash them on the USSR. One of the most aggressive proposals called for a sudden strike of 300 nuclear bombs on 200 Soviet targets, followed by a swift land invasion that planners assumed would be short‑lived.

The U.S. even penciled in a specific date—January 1, 1957—to unleash this nuclear barrage. The plan was shelved only after the Soviets successfully tested their own atomic bomb, which made the American leadership rethink a direct nuclear assault.

7 Seven Days To The River Rhine: The Soviet Plan To Nuke Half Of Europe

The Soviets, of course, had their own terrifying blueprints. One document from 1979, now public, outlined a scenario that would have ignited World War III.

The premise assumed NATO would launch a nuclear first strike against Poland, a premise so outlandish that many suspect it was merely a pretext to justify a massive Soviet response. Regardless, the USSR prepared to hit NATO hard.

Under the plan, Soviet forces would unleash 7.5 megaton‑worth of atomic weapons on targets across West Germany, Belgium, the Netherlands and Denmark, then push troops forward to seize everything up to the Rhine River.

The Soviets anticipated massive casualties. They expected cities like Prague and Warsaw to be obliterated by the nuclear blasts, and even plotted a suicidal mission for the Polish army. Within a week, they projected over two million Polish deaths, sparking a new global conflict.

6 The Nazi Plan To Invade Japan

The Nazis never trusted that their alliance with Japan would endure forever. Their partnership was a marriage of convenience, and once the war ended, they expected a showdown between the “white” and “yellow” races.

Hitler told his staff that this clash wouldn’t happen for a century, but he still ordered preparations. Heinrich Himmler was tasked with readying the SS for a future war against Japan, fearing that peace would make German troops soft.

To keep the SS battle‑ready, Himmler ordered relentless racial campaigns and even contemplated posting troops to the icy reaches of Siberia as a form of hardening. He also envisioned a massive population‑building program, urging Germans to breed like a “botanical garden” to match the projected billions of Japanese soldiers.

5 National Redoubt: The Swiss Plan To Stop Being Neutral

Switzerland wasn’t wholly committed to perpetual neutrality. In 1940, surrounded by Axis forces, they seriously contemplated abandoning their peaceful stance.

Realizing the Axis could turn on them at any moment, the Swiss began pulling troops away from the borders and relocating them deep into the Alpine mountains, constructing a chain of fortified bunkers and strongholds.

The Swiss also staged war‑games, reenacting battles happening in neighboring nations, and deliberately displayed these preparations to the Axis powers, hoping to send a clear warning that any invasion would be costly.

This wasn’t mere paranoia. Nazi Germany had its own secret operation—Operation Tannenbaum—aimed at conquering Switzerland. Hitler famously described the neutral country as “a pimple on the face of Europe.” The Swiss Alpine defenses were precisely the deterrent they hoped would halt a German onslaught.

4 The Turkish Plan To Invade Syria

Most of the plans listed above are decades old, but that doesn’t mean modern states have stopped crafting invasion blueprints. They simply keep newer schemes under wraps, and occasionally, leaks happen—as they did in 2014 when Turkey’s plot to invade Syria surfaced on YouTube.

In the leaked recording, Turkish ministers discuss a potential terrorist attack on the tomb of Suleyman Shah, the father of the Ottoman Empire’s founder. Rather than fearing the attack, one minister argued it could serve as a perfect pretext for a larger military incursion.

Turkish intelligence chief Hakan Fidan even suggested staging a fake attack if none occurred, saying, “I’ll send four men from Syria, if that’s what it takes.” He insisted legitimacy could be manufactured, giving Turkey a convenient excuse to send troops into Syria.

3 The Israeli Plan To Invade Iran

Between 2010 and 2012, Israeli Prime Minister Benjamin Netanyahu and Defense Minister Ehud Barak convened at least three times to plot a full‑scale invasion of Iran. Their plans nearly came to fruition, but IDF Chief Gabi Ashkenazi stepped in and halted the operation.

Three leaked recordings reveal Netanyahu and Barak hashing out the details. In 2010, they were close to securing ministerial backing, but Ashkenazi delivered a passionate speech about the human cost, persuading them to pause.

Undeterred, the duo revived the scheme in 2012, this time with the United States reportedly ready to back the assault. They even conducted joint drills to prepare for a coordinated strike, but for reasons still unclear, the invasion was ultimately called off.

2 Project A119: The American Plan To Nuke The Moon

In 1959, the U.S. Army decided that conquering Earth wasn’t ambitious enough; they drafted a plan to detonate a nuclear device on the Moon.

The operation served a dual purpose: a scientific experiment (though many suspect it was more about showcasing American might) and a psychological weapon aimed at terrifying the Soviet Union. Scientists calculated the blast size needed to make the explosion visible from the ground, hoping the sight would cripple Soviet morale.

The mission was ultimately abandoned after advisors warned that nuking the Moon would be a public relations disaster. Nevertheless, the project got as far as hiring astrophysicist Carl Sagan to crunch the numbers. Had it proceeded, the Moon would have been blasted before any Apollo landing.

1 War Plan White: The American Plan To Fight Its Own People

During the first half of the twentieth century, the United States drafted plans to invade virtually every nation on the planet—including itself. This internal contingency was known as War Plan White, a strategy to suppress what officials termed a “left‑wing radical insurrection.”

At the time, labor unions were pushing for greater rights, and the government feared these movements might spiral into a communist uprising. War Plan White outlined how the Corps of Engineers would seize control of public utilities, the Navy would protect military assets, and the Army would march through civilian populations to restore order.

A secret police force was slated to be established in Pennsylvania, tasked with monitoring troublemakers and determining when lethal force could be justified. The plan even delved into the legalities of shooting American civilians under specific circumstances.

As decades passed, the strategy was revised for new threats. The most recent leaked version addressed a potential uprising by Black citizens demanding civil rights, showing how the United States continued to contemplate using military force against its own populace.