- In her screen debut, Alice Pearce repeated her role from the 1944 Broadway musical.
- Jules Munshin (I) had a fear of heights. During the "New York, New York" number on the top of the skyscraper he's always holding on to the wall or one of the other two.
- First musical feature film to be shot on location
- The crew tried to keep the location filming in New York City as low key as possible. Many of the scenes were filmed from the back of a station wagon. At the end of "New York, New York", as the camera tilts up at Rockefeller Plaza, you can see the skating rink lined with spectators watching Frank Sinatra and 'Gene Kelly' .
- When 'Gene Kelly' dismisses the beauty of a passing New York gal, 'Jules Munshin (I)' asks, "Who you got waiting for you in New York, Ava Gardner?" Frank Sinatra was having an affair with Gardner at the time.
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