A mischievous, adventuresome fourteen-year-old girl and her best friend begin following an eccentric concert pianist around New York City after she develops a crush on him.
| Writing | Nunnally Johnson | Screenplay |
| Directing | George Roy Hill | Director |
| Writing | Nora Johnson | Screenplay |
| Production | Jerome Hellman | Producer |
| Writing | Nora Johnson | Novel |
| Production | Marion Dougherty | Casting |
| Costume & Make-Up | Ann Roth | Costume Design |
| Sound | Elmer Bernstein | Original Music Composer |
| Camera | Arthur J. Ornitz | Director of Photography |
| Editing | Stuart Gilmore | Editor |
| Art | James W. Sullivan | Production Design |
| Camera | Boris Kaufman | Director of Photography |
| Art | Ken Krausgill | Set Decoration |
| Art | Jan Scott | Art Direction |
| Directing | Ruth Deen | Script Supervisor |
| Sound | Sam Freed Jr. | Musician |
