The film is unique among Hitchcock's American films for having no musical score during the narrative (apart from the singing of the U-boat captain and of Gus, accompanied by flute); the Fox studio orchestra was used only for the opening and closing credits. Hitchcock dismissed the idea of having music in a film about people stranded at sea by asking, "Where would the orchestra come from?" Hugo Friedhofer is said to have asked in reply, "Where would the cameras come from?"