That's Right – You're Wrong is a 1939 American musical film directed by David Butler and released by RKO Radio Pictures.

The film stars Kay Kyser and his band, with a cast that included Adolphe Menjou, Lucille Ball, Edward Everett Horton, Roscoe Karns, and Ginny Simms (as herself).

It was the first film to feature Kyser and his band, and its success led to their headlining several more pictures over the next five years.

At the studio, things quickly take a bad turn, as top screenwriters Village and Cook realize that Kyser's unprepossessing looks and personality don't exactly fit the mold of the dashing romantic lead most movies require.

He tells the bandleader that his girl, vocalist Ginny, will be replaced by rising star Sandra Sand.