When the dance sequence with Gene Kelly and Jerry Mouse was screened for MGM executives, someone noticed that, although Gene Kelly's reflection shone on the floor during his dancing, Jerry's did not. This required animators William Hanna, Joseph Barbera, and their team to go back and draw Jerry's reflection on the floor as he was dancing.
One of the rare occasions when Jerry Mouse actually talks.
Although many have said that a longstanding resentment between the two leads was started during this project, there is little to no evidence to suggest this. Quite the contrary, it was this film that started a lasting friendship between Frank Sinatra and Gene Kelly that spawned two other film projects.
George Stoll won the Academy Award for Best Scoring of a Musical Picture. Stoll died in 1985, and his Oscar was part of an estate sale in 2001. It was purchased secretly by Kevin Spacey for $156,875, who then returned it to the Academy.