One little ancient British village still holds out against the Roman invaders. Asterix and Obelix are invited to help. They must face fog, rain, warm beer and boiled boar with mint sauce, but they soon have Governor Encyclopaedius Britannicus's Romans declining and falling. Until a wild race for a barrel of magic potion lands them in the drink.
| Sound | Vladimir Cosma | Original Music Composer |
| Editing | Monique Isnardon | Editor |
| Editing | Robert Isnardon | Editor |
| Writing | René Goscinny | Scenario Writer |
| Writing | Albert Uderzo | Scenario Writer |
| Writing | Pierre Tchernia | Adaptation |
| Camera | Philippe Lainé | Director of Photography |
| Directing | Pino Van Lamsweerde | Director |
| Production | Philippe Grimond | Executive Producer |
| Visual Effects | Jean-Jacques Prunès | Animation |
| Visual Effects | Darlie Brewster | Animation |
| Visual Effects | Roberto Casale | Animation |
| Visual Effects | Brice Mallier | Animation Manager |
| Visual Effects | Zoltán Maros | Animation |
| Visual Effects | Didier Gourdin | Animation |
