Twee ouder wordende actrices leven inmiddels als kluizenaars in een oud tehuis in Hollywood. Jane Hudson, een succesvol kindsterretje, zorgt voor haar oudere en gehandicapte zuster Blanche, wiens carrière in latere jaren dat van Jane overvleugelde.
Nee, helaas is What Ever Happened to Baby Jane? nog niet beschikbaar op Netflix in Nederland.
| Writing | Henry Farrell | Novel |
| Directing | Robert Aldrich | Director |
| Production | Kenneth Hyman | Executive Producer |
| Sound | Frank De Vol | Original Music Composer |
| Editing | Michael Luciano | Editor |
| Writing | Lukas Heller | Screenplay |
| Camera | Ernest Haller | Director of Photography |
| Production | Robert Aldrich | Producer |
| Art | William Glasgow | Art Direction |
| Sound | Harold E. McGhan | Sound Editor |
| Art | George Sawley | Set Decoration |
| Production | Jack R. Berne | Production Supervisor |
| Directing | Tom Connors Jr. | Assistant Director |
| Camera | Till A. Gabbani | Camera Operator |
| Crew | Alex Romero | Choreographer |
| Sound | George E. Marsh | Music Editor |
| Directing | Robert Gary | Script Supervisor |
| Art | John Orlando | Property Master |
| Costume & Make-Up | Norma Koch | Wardrobe Designer |
| Sound | Jack Solomon | Sound |
| Production | Walter Blake | Producer's Assistant |
