When Penelope gets married to banker James Elcott, she finds him too preoccupied with work to pay much attention to her, so she robs his bank in disguise. After she confesses to her psychiatrist, Greg Mannix, he offers to return the money for her, as he is secretly in love with her. However, he abandons the money when the police approach. Penelope becomes determined to admit to the crime, but neither James nor the police believe her story.
Unfortunately the movie Penelope is not yet available on HBO Max.
| Directing | Arthur Hiller | Director |
| Writing | George Wells | Screenplay |
| Writing | Howard Fast | Novel |
| Sound | John Williams | Original Music Composer |
| Camera | Harry Stradling Sr. | Director of Photography |
| Art | George W. Davis | Art Direction |
| Sound | John Williams | Songs |
| Editing | Rita Roland | Editor |
| Sound | Franklin Milton | Sound Recordist |
| Art | F. Keogh Gleason | Set Decoration |
| Costume & Make-Up | William Tuttle | Makeup Artist |
| Directing | Terence Nelson | Assistant Director |
| Costume & Make-Up | Edith Head | Costume Design |
| Art | E. Preston Ames | Art Direction |
| Costume & Make-Up | Sugar Blymyer | Hairstylist |
| Art | Henry Grace | Set Decoration |
| Production | Arthur M. Loew Jr. | Producer |
| Costume & Make-Up | Sydney Guilaroff | Hairstylist |
| Production | Joe Pasternak | Executive Producer |
| Costume & Make-Up | Edith Head | Costumer |
