C.R. MacNamara is a managing director for Coca Cola in West Berlin during the Cold War, just before the Wall is put up. When Scarlett, the rebellious daughter of his boss, comes to West Berlin, MacNamara has to look after her, but this turns out to be a difficult task when she reveals to be married to a communist.
Unfortunately the movie One, Two, Three is not yet available on HBO Max.
| Directing | Billy Wilder | Director |
| Camera | Daniel L. Fapp | Director of Photography |
| Editing | Daniel Mandell | Editor |
| Art | Heinrich Weidemann | Production Design |
| Art | Alexandre Trauner | Art Direction |
| Production | Billy Wilder | Producer |
| Sound | Basil Fenton-Smith | Sound Designer |
| Writing | I. A. L. Diamond | Screenplay |
| Sound | André Previn | Original Music Composer |
| Crew | Milt Rice | Special Effects |
| Art | Robert Stratil | Production Design |
| Writing | Billy Wilder | Screenplay |
| Art | Alexandre Trauner | Production Design |
| Production | Werner Fischer | Production Manager |
| Directing | Tom Pevsner | Assistant Director |
| Sound | Richard Carruth | Music Editor |
| Production | William A. Calihan Jr. | Production Manager |
| Sound | Del Harris | Sound Effects Editor |
| Camera | Lothar Winkler | Still Photographer |
| Crew | Saul Bass | Title Graphics |
| Production | Conrad von Molo | Production Supervisor |
| Sound | John Brommage | Boom Operator |
| Sound | André Previn | Conductor |
| Production | I. A. L. Diamond | Associate Producer |
| Writing | Ferenc Molnár | Theatre Play |
| Production | Doane Harrison | Associate Producer |
| Directing | André Smagghe | Second Unit Director |
| Directing | May Wale Brown | Continuity |
