Close Harmony is a 1929 musical starring Buddy Rogers and Nancy Carroll, with Jack Oakie and 'Skeets' Gallager providing comic relief. Unfortunately the movie rights are owned by Universal and, therefore, the movie is not available for purchase. Darn it. The review on IMDB is quite positive, sounds like great fun. With Jack Oakie and Skeets portraying a singing duo, how could it not be. It's just downright immoral, denying the public the enjoyment of a movie --- especially Letty Lynton!!
Buddy Rogers & Nancy Carroll in Close Harmony (1929)