[ProtectOurFreedom]

I just added it to my queue on DVD.com (netflix). From their description:

The great Laurence Olivier leads an impressive cast in this wartime thriller about a Nazi U-boat crew stranded in Canada during World War II. Led by the fanatical Lt. Hirth (Eric Portman), the crew finds refuge in a small rural community while planning an escape across the border of the still neutral United States. An early work from British director Michael Powell, the film was seen as a propaganda piece urging America to join the Allied effort.

Cast: Eric Portman, Laurence Olivier, Leslie Howard, Richard Epcar, Raymond Lovell, Niall MacGinnis, Peter Moore, John Chandos, Basil Appleby, Finlay Currie, Ley On, Anton Walbrook, Glynis Johns, Charles Victor, Frederick Piper, Raymond Massey

Director: Michael Powell

[hardspunned]

It’s free on YouTube

[Dr. Sivana]

the film was seen as a propaganda piece urging America to join the Allied effort.

It was more than just that. It also reminded the different types of Canadians (French-Canadians, German Hutterites, Anglophiles ...) that they had much to unite themselves, and nothing in common with Hitlerism.