49th Parallel, 1941. This was the third film made by the British filmmaking team of Michael Powell and Emeric Pressburger. It was released in the United States as The Invaders.
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Screenwriter Emeric Pressburger remarked, "Goebbels considered himself an expert on propaganda, but I thought I'd show him a thing or two". Powell persuaded the British and Canadian governments and started location filming in 1940, but by the time the film appeared, in March 1942, the United States, which had been trying to stay out of the war in Europe, had been drawn into taking sides against Germany.