Combine facts and answer this: The Man Who Never Was is a 1956 Second World War film, based on the book of the same name by Lt. Cmdr. Ewen Montagu and dramatising actual events, it is about which 1943 British Intelligence plan to deceive the Axis powers into thinking Operation "Husky", the Allied invasion of Sicily, would take place elsewhere, a successful British disinformation strategy?
The answer to this question is:
Operation Mincemeat