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. Starring Anthony Andrews, Timothy Bottoms and Martin Shaw, it was directed by Lewis Gilbert and shot mostly on location in Prague. It is adapted from the book Seven Men at Daybreak by Alan Burgess.

Source: Wikipedia