It's a factual story far stranger than fiction: and it proved a vital turning point in World War II.
Starring British acting powerhouse Colin Firth, Matthew Macfadyen (Pride & Prejudice, Succession), Kelly Macdonald (No Country for Old Men) and Penelope Wilton (Downton Abbey), Operation Mincemeat delivers intrigue, deception, and a sprinkle of humour.
The movie is adapted from best-selling author Ben Macintyre's book of the same name.
Set in 1943, the film follows two brilliant intelligence officers, Ewen Montagu (Firth) and Charles Cholmondeley (Macfadyen) who conceived a plan that was dubbed Operation Mincemeat.
They would trick the Nazis into thinking Allied forces were planning to attack southern Europe by way of Greece rather than Sicily.
Their plan was to get a corpse, equip it with misleading papers, then drop it off the coast of Spain where Nazi spies would take the bait.
Operation Mincemeat, Transmission Films, is in cinemas on May 12.