Till The Clouds Roll By is a 1946 Technicolor American musical film made by MGM. The film is a fictionalized biography of composer Jerome Kern (portrayed by Robert Walker) who was originally involved with the production of the film, but died before it was completed. Till the Clouds Roll By contained a large cast of well-known musical stars of the day who appear performing Kern's songs. Wikipedia
Victor Herbert: (congratulating Jerome Kern on his composing ability) My boy, you've got a song to sing.