Gloria DeHaven plays the part of her own mother, Mrs. Carter DeHaven.
Bert Kalmar and Harry Ruby were friends of Fred Astaire from their early days together in vaudeville. Astaire said the film was one of his all-time favorites.
A billboard for the Marx Brothers in Animal Crackers is seen in the film.
The dress worn by Gale Robbins in the "All Alone Monday" number is the same dress worn by Ann Miller in the "Girl on the Magazine Cover" in Easter Parade.
The real Harry Ruby appears in a bit part as one of the baseball players. He is the one who catches the ball thrown by Red Skelton (as Harry Ruby) and tells "Ruby" to take it easy.