Lucille Ball's singing was dubbed by Annette Warren, who also dubbed Ball in Ai vostri ordini signora! (1950).
The opening narration is read by famous New York columnist Walter Winchell. Winchell was the basis for Damon Runyon's character Waldo Winchester.
A theater marquee for the The Marx Brothers' Una notte all'opera (1935) can be seen when Sorrowful is riding Dreamy Joe down Broadway. This places the events of the movie in 1935.