From Wikipedia: The Enemy Below is a 1957 DeLuxe Color war film in CinemaScope, which tells the story of the battle between the captain of an American destroyer escort and the commander of a German U-boat during World War II. The movie stars Robert Mitchum and Curt Jürgens and was directed and produced by Dick Powell. The film was based on a novel by Denys Rayner, a British naval officer involved in anti-submarine warfare throughout the Battle of the Atlantic.
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