Alain and Marie moved to the suburb house of their dreams. But the real estate agent warned them: what is in the basement may well change their lives forever.
Unfortunately the movie Incredible But True is not yet available on HBO Max.
| Production | Thomas Verhaeghe | Producer |
| Camera | Quentin Dupieux | Director of Photography |
| Costume & Make-Up | Isabelle Pannetier | Costume Designer |
| Production | Olivier Père | Co-Producer |
| Sound | Martin Caraux | Music Supervisor |
| Production | Philippe Logie | Associate Producer |
| Writing | Quentin Dupieux | Screenplay |
| Editing | Quentin Dupieux | Editor |
| Production | Marine Albert | Casting |
| Costume & Make-Up | Romain Marietti | Key Hair Stylist |
| Costume & Make-Up | Dorothée Soual | Wigmaker |
| Sound | Charles Michaud | Sound |
| Lighting | Mickaël Bonnet | Lighting Technician |
| Camera | Lucie Colombié | First Assistant Camera |
| Directing | Anne Juin | Third Assistant Director |
| Sound | Alexis Place | Sound Editor |
| Crew | Paul Bourcart | Weapons Master |
| Camera | Hugo Manuelli | Additional Grip |
| Costume & Make-Up | Elfie Carlier | Costumer |
| Sound | Gadou Naudin | Foley Artist |
| Costume & Make-Up | Manon Lancerotto | Wardrobe Master |
| Art | Simon Tric | Property Master |
| Production | Agathe Preljocaj | Extras Casting |
| Production | Antoine Boulay | Assistant Unit Manager |
| Production | Stéphane Avenard | Unit Production Manager |
| Sound | Régis Boussin | Sound |
| Lighting | Renaud Garnier | Gaffer |
| Costume & Make-Up | Céline Vh | Hairstylist |
| Crew | Abraham Goldblat | Post-Production Manager |
| Art | Hugo Dubus | Assistant Art Director |
| Costume & Make-Up | Constance Allain | Additional Wardrobe Assistant |
| Directing | Benoit Seiller | Second Assistant Director |
| Art | Suzanne Arhex | Painter |
| Sound | Antoine Citrinot | Sound Editor |
| Crew | Frédéric Vallet | Stunt Coordinator |
| Production | Arnaud Tournaire | Production Manager |
| Sound | Charles de Ville | Sound Editor |
| Sound | Guillaume Le Braz | Sound |
| Camera | Axel Auger | Grip |
| Editing | Jean-Louis Guichaoua | Assistant Editor |
| Editing | Fabien Napoli | Colorist |
| Costume & Make-Up | Olivier Afonso | Special Effects Makeup Artist |
| Costume & Make-Up | Pierre Emmanuel Kass | Special Effects Makeup Artist |
| Costume & Make-Up | Alexandra Moulié | Special Effects Makeup Artist |
| Costume & Make-Up | Anthony Jagu | Hairstylist |
| Directing | Quentin Dupieux | Director |
