The Silent Raid

The Silent Raid Dutch De Overval is a 1962 Dutch war film directed by Paul Rotha. It shows a true story from World War II the raid on Leeuwarden prison of December 8, 1944. Without firing a shot, Dutch resistance members disguised as German SD and their prisoners enter the prison, freeprisoners and vanish into the city. The Germans were unable to find any of the organizers or escapees.

Source: Wikipedia