Canaris is a 1954 West German drama film directed by Alfred Weidenmann and starring O.E. Hasse, Barbara Rtting and Adrian Hoven. It portrays real events during the Second World War when Wilhelm Canaris the head of German military intelligence was arrested and executed for his involvement with theJuly Plot to overthrow Adolf Hitler. The film was a major success at the German box office, possibly because it allowed audiences to identify with a heroic German figure disassociated from Nazism. It is also known by the alternative title Canaris Master Spy.
Source: Wikipedia