In the scene where all the Dons meet, each Don's surname and place of residence is that of a Californian city, but no Don name nor home abode is the same Californian place: Don Diego is from San Fernando; Don Francisco is from San Jose; Don Fernando is from San Diego; Don Jose is from San Bernardino; whilst Don Luis Obispo is from Bakersfield, the last being a further joke, as the city does not fit with the others as it has no "San" prefix.
The musical theme for the main credits and Zorro's action sequences was originally scored by Max Steiner and used in Adventures of Don Juan (1948) starring Errol Flynn.
When the producers of the film thought that the voice and Spanish accent of the famous Canadian Shakespearean actress Helen Burns was not quite right for that of Zorro's extremely ancient servant, Consuelo, the role was re-voiced by one of the oldest Spanish-speaking actresses in Hollywood, a 70-year-old Argentine woman, colleague of Rita Hayworth's father, the dancer Eduardo Cansino.
In some countries, like Australia, the movie's title was changed to "Zorro Swings Again."
The film's opening dedication states: "This film is dedicated to Rouben Mamoulian and the other great filmmakers whose past gives us our future". The movie opens with a black-and-white clip from The Mark of Zorro (1940) which Mamoulian directed.