Celestine is a little mouse trying to avoid a dental career while Ernest is a big bear craving an artistic outlet. When Celestine meets Ernest, they overcome their natural enmity by forging a life of crime together.
| Directing | Stéphane Aubier | Director |
| Directing | Vincent Patar | Director |
| Directing | Benjamin Renner | Director |
| Writing | Daniel Pennac | Screenplay |
| Production | Didier Brunner | Producer |
| Production | Henri Magalon | Producer |
| Production | Vincent Tavier | Producer |
| Writing | Gabrielle Vincent | Novel |
| Sound | Vincent Courtois | Original Music Composer |
| Art | Zaza | Production Design |
| Art | Zyk | Production Design |
| Production | Stéphan Roelants | Producer |
| Production | Carval Ollivier | Production Manager |
| Production | Thibaut Ruby | Production Manager |
| Production | Joshua Jason | Publicist |
| Sound | Emmanuel de Boissieu | Sound Re-Recording Mixer |
| Sound | Franco Piscopo | Sound Re-Recording Mixer |
| Crew | Michel Hick | Software Engineer |
| Sound | Renaud Guillaumin | Sound Editor |
| Art | Tomislav Findrik | Storyboard Designer |
| Sound | Fred Demolder | Supervising Sound Editor |
| Visual Effects | Thomas Charra | Key Animation |
| Visual Effects | Michael Crouzat | Key Animation |
| Visual Effects | Sébastien Rouxel | Key Animation |
| Visual Effects | Mathieu Chaptel | Key Animation |
| Sound | Valérie Le Docte | Dialogue Editor |
| Sound | Luc Thomas | Foley |
| Art | Kherveen Dabyllal | Painter |
| Sound | Anaпs Moreau | Musician |
| Sound | Louis Sclavis | Musician |
| Sound | Nicolas Thys | Musician |
| Production | Ned Lott | Co-Producer |
| Art | Marie Maulet | Painter |
| Visual Effects | Patrick Imbert | Animation Director |
| Visual Effects | Julien Chheng | Animation |
| Visual Effects | Davy Durant | Animation |
| Visual Effects | Julien Perron | Animation |
| Visual Effects | Gaelle Thierry | Animation |
| Editing | Fabienne Alvarez-Giro | Editor |
| Directing | Virgile Bage | Layout |
| Sound | Thomas Fersen | Songs |
| Sound | Emmanuel Delétang | Music Supervisor |
| Crew | Thomas Averland | Post-Production Manager |
| Sound | Bruno Seznec | Recording Supervision |
| Sound | Bertrand Boudaud | Sound Effects Editor |
| Sound | Thibaut Vandermeerch | Sound Recordist |
| Sound | Pierre Aretino | Sound Re-Recording Mixer |
| Visual Effects | Marc Umé | Visual Effects Supervisor |
| Sound | Catherine Maubourguet | Musician |
| Sound | Christine Seznec | Recording Supervision |
| Crew | Rip Hampton O'Neil | Supervising Technical Director |
| Visual Effects | Stéphanie Haulet | Animation |
| Production | Stephanie Sheh | Casting |
| Writing | Stephanie Sheh | Adaptation |
| Production | Stephanie Sheh | Production Supervisor |
| Production | Ned Lott | Casting |
| Visual Effects | Eric Dupont | Digital Compositors |
| Sound | Raphaël Seydoux | ADR Mixer |
