The MacIver brothers (Michael Redgrave, Griffith Jones) build the first ship to cross the Atlantic by steam power alone.
| Writing | Gordon Wellesley | Screenplay |
| Directing | Walter Forde | Director |
| Writing | Edward Dryhurst | Screenplay |
| Writing | Emeric Pressburger | Screenplay |
| Sound | Ernest A. Royls | Sound |
| Crew | Douglas Woolsey | Special Effects |
| Writing | Derek MacIver | Story |
| Art | Norman G. Arnold | Art Direction |
| Writing | Wynne MacIver | Story |
| Sound | Jack Beaver | Music Director |
| Editing | Terence Fisher | Editor |
| Camera | Basil Emmott | Director of Photography |
| Crew | Henry Harris | Special Effects |
