The Man Who Never Was

In order to fool the Germans into thinking the Allied invasion of Sicily will take place elsewhere, British Military Intelligence comes up with a cunning ruse.
The true story of a British effort to trick the Germans into weakening Sicily's defenses before the 1943 attack. A dead soldier is dressed as a British officer and outfitted with faked papers showing that the Allies were intending to invade occupied Greece. His body is put into the sea where it will ultimately drift ashore and the papers be passed along to German Intelligence.