You'll Find Out is a 1940 American comedy film directed by David Butler and starring Kay Kyser. In 1940, the film was nominated for an Academy Award for Best Original Song ("I'd Know You Anywhere") at the 13th Academy Awards. In the film, members of an orchestra hired to play at a young heiress's birthday party uncover a plot against her. The film was very popular and made a profit of $167,000.

Plot

After Kay Kyser and his orchestra arrive at a castle-shaped mansion, the drawbridge leading to it is mysteriously dynamited, stranding both entertainers and guests.