Nine Lives

Nine Lives is a 1957 Norwegian film about Jan Baalsrud, a commando and member of the Norwegian resistance during World War II. Trained in Britain, in 1943, he participates in an operation to destroy a German air control tower. The mission is compromised when he and his fellow soldiers accidentally make contact with a civilian, rather than a Resistance member, who betrays them to the Nazis.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.