An experiment on a simpleton turns him into a genius. When he discovers what has been done to him he struggles with whether or not what was done to him was right.
Unfortunately the movie Charly is not yet available on HBO Max.
| Art | John DeCuir | Production Design |
| Art | Charles Rosen | Art Direction |
| Costume & Make-Up | Hazel Roy | Costume Design |
| Costume & Make-Up | Vin Kehoe | Makeup Artist |
| Costume & Make-Up | Phil Naso | Hairstylist |
| Production | Henry Spitz | Production Manager |
| Production | Tom Walker Jr. | Production Supervisor |
| Crew | Shelley Bartolini | Scenic Artist |
| Sound | Clem Portman | Recording Supervision |
| Sound | Jim Shields | Sound Recordist |
| Camera | Jack Brown | Assistant Camera |
| Crew | Rod Stephens | Post Production Assistant |
| Art | Richard Kuhn | Title Designer |
| Directing | Ralph Nelson | Director |
| Writing | Stirling Silliphant | Screenplay |
| Writing | Daniel Keyes | Novel |
| Production | Ralph Nelson | Producer |
| Production | Selig J. Seligman | Executive Producer |
| Camera | Arthur J. Ornitz | Director of Photography |
| Editing | Fredric Steinkamp | Editor |
| Sound | Ravi Shankar | Original Music Composer |
