Brothers Michael and David Tremayne decide to steal the Crown Jewels from the Tower of London, not for criminal purposes, but to make themselves famous.
| Directing | Michael Winner | Director |
| Writing | Dick Clement | Screenplay |
| Writing | Ian La Frenais | Screenplay |
| Writing | Michael Winner | Story |
| Production | Ben Arbeid | Producer |
| Production | Maurice Foster | Producer |
| Sound | Johnny Pearson | Original Music Composer |
| Camera | Ken Hodges | Director of Photography |
| Editing | Bernard Gribble | Editor |
| Art | John Blezard | Art Direction |
| Costume & Make-Up | Jeanette Freeman | Hairdresser |
| Costume & Make-Up | Jim Hydes | Makeup Artist |
| Production | Kenneth Marsden | Production Manager |
| Production | Pat Marsden | Production Manager |
| Production | Fred Hymns | Production Supervisor |
| Directing | Ariel Levy | Second Assistant Director |
| Directing | Ken Softley | Assistant Director |
| Sound | John Purchese | Sound |
| Sound | Terry Rawlings | Sound Editor |
| Sound | Hugh Strain | Sound |
| Visual Effects | Ron Ballanger | Special Effects Supervisor |
| Crew | Jimmy Harris | Special Effects |
| Crew | Garth Inns | Special Effects |
| Camera | Herbert Smith | Camera Operator |
| Costume & Make-Up | Tony Armstrong | Costume Design |
| Costume & Make-Up | John Brady | Wardrobe Master |
| Production | Timothy Pitt Miller | Location Manager |
| Directing | Doreen Dearnaley | Continuity |
| Production | Maureen Newman | Production Accountant |
| Crew | Malcom Sandeman | Other |
