Since appearing as himself in The Jolson Story (1946), Al Jolson had wanted to play himself in this film too. However, he does in fact appear in the film. During the shooting of "The Jolson Story" there is a man standing watching the filming in a gray cowboy hat--this is Jolson.
In The Jolson Story (1946), the performer who actually sings "Swanee" is Al Jolson himself. It is the only place in the film where he performs live on camera.
Larry Parks as Larry Parks has no lines of dialogue.
This film was the #1 moneymaker of 1949.