Jean Vander Pyl's first film project.
Susan Luckey's first film project.
During the Mr. and Mrs. number José Ferrer was actually singing and dancing with his then-wife Rosemary Clooney, who was pregnant at the time.
In an interview José Ferrer disclosed that he had to redo the "Jazza-Jazza-Doo-Doo" routine several times because the crew kept laughing out loud and interfering with the sound track. The director finally cleared the set of everyone not needed to film the segment and this time they got it on film.
The "Serenade" set used for "The Student Prince" segment is the same set that was used in The Student Prince, which had been shot earlier that year.
The costumes in the "It" number were recycled from the "Beautiful Girls" number in Singin' in the Rain.
These deleted musical numbers appear on the 2008 DVD from Warner Home Video: an outtake of "Girlies of the Cabaret" (lyrics by Harold Atteridge), performed by Esther Williams and George Murphy (in what would have been his last feature in a 20-year screen career); an outtake of "Dance, My Darlings" (from the 1935 Broadway show, "May Wine," lyrics by Oscar Hammerstein II), sung by Helen Traubel; plus an audio medley by Tony Martin and Joan Weldon of two songs from the 1928 Broadway score of "The New Moon" (lyrics by Hammerstein): "One Kiss" (cut from the movie) and "Lover, Come Back to Me" (used in the film).