3 different actors played 1 character on the movie. One was the original actor, the second was his dubbing voice and the third was his singing voice. This happened on 4 characters: Capitán Leonello, Rosina, Flora and Lombardi. The dubbing voices were uncredited, the singing voices only appeared on the end credits. Lombardi had only his singing voice credited, the actor who played him and his dubbing voice don't.