Danny Kaye and Vera-Ellen would co-star again in their next movie, "The Kid from Brooklyn" (1946), but they would not team up again until they filmed "White Christmas" (1954) with Bing Crosby and Rosemary Clooney.
The effect used to symbolize Buzzy's spirit rising from the water in prospect park was a superimposed shot of an electric floor fan projected over the screen.
Danny Kaye appears to perform one of the earliest examples of 'beatboxing' during his allergy-ridden rendition of "Otchi Tchorniya" whilst onstage at the Pelican Club.
The giant vases in the set of the Pelican Club were a last-minute inspiration of art director Ernst Fegté. He had originally commissioned legendary sculptor Tony Duquette to do large statues for the set, but producer Samuel Goldwyn, who'd approved the sketches of Duquette's sculptures, decided he didn't like them once they were built. Eventually, Fegté arranged to sell Duquette's sculptures to MGM and thought of using the giant vases to replace them.