Operation Mincemeatisthe UK’s latest World War II filmabout the legendary plan the British used to trick the Nazis into believing the Allied invasion was coming through Greece instead of Sicily. The movie has a fantastic cast and unforgettable characters. And the moment in history the writers chose is truly ripe for suspense and cinematic intensity. Though the film is based on actual events, it is undoubtedly better than any story someone could have made up.

The historical events ofOperation Mincemeathave been adapted to film before. It was made into the 1956 movieThe Man Who Never Wasand based on the memoir of Naval intelligence officer Ewen Montagu who was credited with leading the deception. However, that film added a fictional B-story about an Irish defector who attempted to foil the British plot. This tale cites its sources as Ben Macintyre’s 2010 bestselling nonfiction bookOperation Mincemeat: The True Spy Story that Changed the Course of WWII. Michelle Ashford did an excellent job adapting the story, creating more of an emotional tableau instead of focusing on clichéd bits of action.

The cast of Operation Mincemeat standing proud

Here’s everything we know so far about this John Madden-directed film.

The Plot & Real-Life Events

The story behindOperation Mincemeatis well known, just from the history. The Allied forces were preparing to attack Fortress Europe. Spain was a notably neutral country, and the Straits of Gibraltar still belonged to the United Kingdom, so Allied naval forces could easily enter the Mediterranean. The plan to invade Italy on the island of Sicily was called Operation Husky. But the Allies were worried the Germans might catch wind of the plan and reinforce their armies in Sicily and the Italian peninsula. Some might remember fromThe Imitation Gamethat code breaking played a big part in WW II. So, the British came up with a clever subterfuge to conceal the Allies’ approach to Sicily.

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It’s possible that Ian Fleming could have conceived of the idea which grew into the plan, but British Naval Intelligence came up with a strategy. They would leak information to the Spanish that the Allied plan was to invade Greece, not Italy. But how to do it? Well, they decided to pull aWeekend at Bernie’s.Having obtained the body of a homeless man named Glyndwr Michael (who died of eating rat poison), they dressed him up as the fictitious Major William Martin. They planted fake identification on him and a photo of his “wife” that was actually a picture of the clerk Jean Leslie. On his person, they also hid a transcript of correspondence between two British Generals discussing how the Allied plan was to invade Greece and that the target of Sicily was merely a feint to distract German forces.

They released the body from a submarine off the Spanish coast, and it was found by a fisherman the following morning. The fisherman showed the body to the police, and the Spanish government shared the information with German intelligence before returning it to the British. They determined that the Germans had read the false note from forensic evidence. Their hopes were confirmed when, after decoding German communications, they saw their forces shift into Greece and Sardinia. And on the 17th of August, Sicily fell to the Allies.

The cast is led by the lovelyColin Firth, who might have been recently most visible in theKingsmanmovies, but who has been the grounding force in epic British films such asTinker Tailor Soldier SpyandThe King’s Speech. The latter film may have begun this decade-long trend of World War II movies being told from the “domestic front” of the United Kingdom, so to speak, which raises the stakes of war through the eyes of civilians rather than soldiers.

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The movie also starsMatthew MacFadyen(most recently inSuccession) playing Charles Cholmondeley, likely the second most important in creating the operation.Jason Isaacs(Lucius Malfoy fromHarry Potter) plays John Godfrey. Lorne MacFadyen (The Outlaw King) plays Roger Dearborn. Paul Ritter (Harry Potter and the Half-Blood PrinceandQuantum of Solace) plays Bentley Purchase. And Johnny Flynn (Stardust) will play Ian Fleming, the famous author of theJames Bondnovels who, at the time, was a Lieutenant Commander in British Naval intelligence. Kelly Macdonald, who plays the voice of Merida inBraveand the role of Carla Jean Moss inNo Country for Old Men, will play Jean Leslie. InOperation Mincemeat, Leslie was an MI5 clerk who became the subject of a photograph that would add realism to the British military’s invented story.

Certainly, an exciting enough story on its own, the movie should make it much more entertaining and hopefully cover more details.Operation Mincemeatopened to generally positive reviewsin the UK and, considering its cast, should prove to be a decent enough movie to see for yourself.

Release Date

Operation Mincemeatis coming to Netflix on June 25, 2025.