The poor, elderly—and the wily, when it comes to parting those who can afford it from their money—Scottish skipper of a broken-down old 'puffer' boat tricks an American tycoon into paying him to transport his personal cargo. When the tycoon learns of the trick, he attempts to track down the boat and remove his possessions.
| Writing | William Rose | Screenplay |
| Camera | Gordon Dines | Director of Photography |
| Writing | Alexander Mackendrick | Story |
| Directing | Alexander Mackendrick | Director |
| Visual Effects | Geoffrey Dickinson | Visual Effects |
| Sound | Stephen Dalby | Sound |
| Art | Jim Morahan | Art Direction |
| Directing | Franklin Gollings | Assistant Director |
| Production | Hal Mason | Production Supervisor |
| Costume & Make-Up | Alex Garfath | Makeup Artist |
| Editing | Peter Tanner | Editor |
| Crew | Leo Wilkins | Sound Recordist |
| Crew | Sydney Pearson | Special Effects |
| Costume & Make-Up | Anthony Mendleson | Costume Design |
| Production | L. C. Rudkin | Unit Production Manager |
| Production | Michael Balcon | Executive Producer |
| Camera | Chic Waterson | Camera Operator |
| Camera | Hugh Wilson | Camera Operator |
| Production | Michael Truman | Producer |
| Sound | John Addison | Original Music Composer |
