The Man Who Never Was is a 1956 British drama WWII film. It features Clifton Webb, Gloria Grahame, Robert Flemyng, Stephen Boyd, Laurence Naismith, Geoffrey Keen, Cyril Cusack, André Morell, Michael Hordern, and Allan Cuthbertson.
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.