Things danced on the screen do not look the way they do on the stage. On the stage, dancing is three-dimensional, but a motion picture is two-dimensional.

For people named Jean Kelly see Jean Kelly (disambiguation). Although he is known today for his performances in Singin' in the Rain and An American in Paris he was a dominant force in Hollywood musical films from the mid-1940s until this art form fell out of fashion in the late 1950s.