A prince and a fellowship of companions set out to rescue his bride from a fortress of alien invaders who have arrived on their home planet.
| Directing | Peter Yates | Director |
| Writing | Stanford Sherman | Screenplay |
| Production | Geoffrey Helman | Producer |
| Production | Ron Silverman | Producer |
| Sound | James Horner | Original Music Composer |
| Camera | Peter Suschitzky | Director of Photography |
| Editing | Ray Lovejoy | Editor |
| Production | Patsy Pollock | Casting |
| Art | Stephen B. Grimes | Production Design |
| Art | Norman Dorme | Art Direction |
| Art | Colin Grimes | Art Direction |
| Art | Tony Reading | Art Direction |
| Art | Herbert Westbrook | Set Decoration |
| Costume & Make-Up | Anthony Mendleson | Costume Design |
| Production | Ted Mann | Executive Producer |
| Camera | Mike Rutter | Focus Puller |
| Costume & Make-Up | Renee Heimer | Wardrobe Designer |
| Crew | Eddie Powell | Stunts |
| Art | Tony Curtis | Art Direction |
| Sound | Ivan Sharrock | Sound Mixer |
| Camera | Kelvin Pike | Camera Operator |
| Costume & Make-Up | Alan Boyle | Makeup Artist |
| Costume & Make-Up | Barbara Ritchie | Hairstylist |
| Sound | Winston Ryder | Supervising Sound Effects Editor |
| Sound | John Richards | Scoring Mixer |
| Crew | Vic Armstrong | Stunt Coordinator |
| Crew | Derek Ware | Stunts |
| Crew | Greg Powell | Stunt Double |
