Obtaining the corpse of a homeless man named Glyndwr Michael.

Set in 1943, the Allies are preparing to invade Sicily—the "soft underbelly of Europe". The problem? Hitler knows it’s coming. To save thousands of lives, British intelligence officers (played by Colin Firth) and Charles Cholmondeley (Matthew Macfadyen) devise a plan inspired by a 1939 memo. The plan involves:

While the movie is largely faithful to history, it takes a few cinematic liberties to keep the drama high: