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She Knew All the Answers is a 1941 American romantic comedy film directed by Richard Wallace, and starring by Joan Bennett, Franchot Tone and Eve Arden. It was produced and distributed by Columbia Pictures. The film tells a story about a chorus girl who wants to marry a rich playboy, but first has to prove herself to his financial advisor. The screenplay was written by Kenneth Earl, Curtis Kenyon, and Harry Segall, adapted from a short story written by Jane Allen entitled "A Girl's Best Friend Is Wall Street," published in 1938 in Cosmopolitan Magazine.