Paris, 2045. The capital's population is monitored by an artificial intelligence named Alma, and divided into three zones. Each zone groups together the same social class. One day, the AI's creator is murdered. The investigation is entrusted to Salia, a policewoman from zone 2, and Zem, a policeman from zone 3.
Unfortunately the movie Chien 51 is not yet available on HBO Max.
| Writing | Cédric Jimenez | Screenplay |
| Writing | Laurent Gaudé | Novel |
| Directing | Cédric Jimenez | Director |
| Production | Clément Quentin | Casting |
| Production | Hugo Sélignac | Producer |
| Writing | Olivier Demangel | Screenplay |
| Costume & Make-Up | Romain Marietti | Hair Department Head |
| Art | Fabien Pondevaux | Location Scout |
| Costume & Make-Up | Myriam Hottois | Makeup Department Head |
| Crew | Mehdi Abdelhakmi | Stunts |
| Sound | Guillaume Roussel | Original Music Composer |
| Directing | Fabien Vergez | First Assistant Director |
| Directing | Zineb Tamazit | Second Assistant Director |
| Directing | Nicolas Bureau | Second Assistant Director |
| Directing | Txomin Vergez | Third Assistant Director |
| Directing | Camille Smagghe | Third Assistant Director |
| Production | Michaël Laguens | Casting Director |
| Art | Bertrand Hée | First Assistant Art Direction |
| Production | Pauline Cailloce | Assistant Production Manager |
| Art | Arnaud Ahier | Construction Manager |
| Art | Mathias Canard | Set Dresser |
| Art | Raphaël de Chauveron | Swing |
| Art | Ricardo Jacobo | Set Designer |
| Art | Francois Jouars | Set Dresser |
| Art | Flavia Tassin | Painter |
| Art | Anthony Zitouni | Painter |
| Sound | Simbad Aguttes | Boom Operator |
| Sound | Margot Delaunay | Sound Assistant |
| Sound | Cédric Deloche | Sound |
| Sound | Clément Trahard | Boom Operator |
| Visual Effects | François Philippi | Special Effects Supervisor |
| Crew | Jeanne Allard | Stunts |
| Crew | Dustin Audibert | Stunts |
| Crew | Yannis Bibie | Stunts |
| Crew | Amedéo Cazzella | Stunts |
| Crew | Charly Schmitt | Stunts |
| Crew | Ahmed Chouikhi | Stunts |
| Crew | Audrey Golay | Stunts |
| Crew | Hugo Galbiati | Stunts |
| Crew | Chloé Machin | Stunts |
| Crew | Lucas Martinelli | Stunts |
| Crew | Esteban Oliva | Stunts |
| Crew | Teddy Ponceau | Stunts |
| Crew | Florine Silva | Stunts |
| Crew | Bryan Vigier | Stunts |
| Camera | Dune Allain | Third Assistant Camera |
| Camera | Jean-Christophe Allain | Focus Puller |
| Camera | Samuel Beal-Rainaldy | Focus Puller |
| Camera | Alex Bouton | Drone Pilot |
| Camera | Pierre Bruley | Drone Pilot |
| Camera | Bruno Dransart | Grip |
| Camera | Florine Jacquemot | Second Assistant Camera |
| Camera | Eoline Laurent | Third Assistant Camera |
| Camera | Maxime Lebas | Assistant Camera |
| Crew | Frederic Moura | Drone Operator |
| Camera | Walter Romand | Drone Pilot |
| Production | Audrey Gatimel | Extras Casting |
| Production | Adrien Micallef | Extras Casting Assistant |
| Production | Camille Sanchez | Extras Casting Assistant |
| Costume & Make-Up | Melody Cheyrou | Wardrobe Assistant |
| Costume & Make-Up | Lucie Rafoni | Wardrobe Assistant |