What true story did a World War II film that Anthony Andrews star in that was the only successful assassination of a senior Nazi leader during World War II?
Operation Daybreak: Operation Daybreak (also known as The Price of Freedom in the US) is a 1975 Second World War film based on the true story of Operation Anthropoid, the assassination of SS General Reinhard Heydrich in Prague. Operation Daybreak:  Starring Anthony Andrews, Timothy Bottoms and Martin Shaw, it was directed by Lewis Gilbert and shot mostly on location in Prague. Operation Anthropoid:  Anthropoid was the only successful assassination of a senior Nazi leader during World War II.
Operation Anthropoid