De heren Peterson, O'Hara, Ross en Ravello willen per schip naar Centraal Afrika voor zaken. Gedurende een oponthoud in een Italiaanse havenplaats krijgen ze gezelschap van Billy en Maria Dannreuther en Gwendolen en Harry Chelm, die eveneens zakelijke plannen hebben.
| Writing | Claud Cockburn | Novel |
| Writing | Truman Capote | Screenplay |
| Writing | John Huston | Screenplay |
| Camera | Oswald Morris | Director of Photography |
| Directing | John Huston | Director |
| Production | John Huston | Producer |
| Editing | Ralph Kemplen | Editor |
| Sound | Franco Mannino | Music |
| Production | Jack Clayton | Producer |
| Production | Humphrey Bogart | Executive Producer |
| Sound | Kevin McClory | Boom Operator |
| Production | Angelo Rizzoli | Producer |
| Production | Jack Clayton | Associate Producer |
| Production | John Woolf | Producer |
| Directing | Robert Sterne | Assistant Director |
| Art | Wilfred Shingleton | Art Direction |
| Costume & Make-Up | Connie Reeve | Makeup Artist |
| Crew | Reg Johnson | Special Effects |
| Costume & Make-Up | Betty Lee | Hairstylist |
| Art | Harry White | Other |
| Editing | Roy Hyde | First Assistant Editor |
| Production | James H. Ware | Location Manager |
| Directing | Jeanie Sims | Assistant Director |
| Camera | Freddie Francis | Camera Operator |
| Visual Effects | Bryan Langley | Visual Effects |
| Sound | Lambert Williamson | Music Director |
| Directing | John Arnold | Assistant Director |
| Crew | Harriet Medin | Dialect Coach |
| Art | John Hoesli | Assistant Art Director |
| Directing | Angela Allen | Continuity |
| Sound | E. Law | Sound Recordist |
| Sound | George Stephenson | Sound Recordist |
| Production | Bill Kirby | Production Manager |
| Sound | Barbara Hopkins | Sound |
| Camera | Robert Capa | Still Photographer |
