This autobiographical story traces the career of playwright Moss Hart. Moss struggles as a dramatic writer until he concentrates his efforts on writing comedy. He suffers through a series of professional and romantic failures before a meeting with George S. Kaufman which changes his fortunes.
Unfortunately the movie Act One is not yet available on HBO Max.
| Directing | Dore Schary | Director |
| Writing | Dore Schary | Screenplay |
| Directing | Michael Hertzberg | Assistant Director |
| Costume & Make-Up | Dean Newman | Makeup Artist |
| Costume & Make-Up | Gene Coffin | Costume Designer |
| Directing | Roger M. Rothstein | Second Assistant Director |
| Art | Edward Carrere | Production Design |
| Art | Edward Carrere | Set Decoration |
| Directing | Ruth Deen | Script Supervisor |
| Sound | Edward Beyer | Sound Editor |
| Production | Joel Freeman | Production Supervisor |
| Costume & Make-Up | Colleen Callaghan | Key Hair Stylist |
| Sound | Skitch Henderson | Original Music Composer |
| Sound | James Perdue | Sound Recordist |
| Editing | Mort Fallick | Editor |
| Camera | Arthur J. Ornitz | Director of Photography |
| Sound | Maurice Rosenblum | Sound Mixer |
| Production | Walter Reilly | Associate Producer |
| Sound | Skitch Henderson | Conductor |
| Production | Dore Schary | Producer |
