Anaïs is twelve and bears the weight of the world on her shoulders. She watches her older sister, Elena, whom she both loves and hates. Elena is fifteen and devilishly beautiful. Neither more futile, nor more stupid than her younger sister, she cannot understand that she is merely an object of desire. And, as such, she can only be taken. Or had. Indeed, this is the subject: a girl's loss of virginity. And, that summer, it opens a door to tragedy.
Unfortunately the movie Fat Girl is not yet available on HBO Max.
| Art | François-Renaud Labarthe | Production Design |
| Directing | Catherine Breillat | Director |
| Editing | Pascale Chavance | Editor |
| Production | Jean-François Lepetit | Producer |
| Camera | Giorgos Arvanitis | Director of Photography |
| Writing | Catherine Breillat | Screenplay |
| Production | Conchita Airoldi | Producer |
| Production | Michaël Weill | Casting |
| Art | Fabienne David | Set Decoration |
| Art | Gérald Lemaire | Set Decoration |
| Production | Gilles Cannatella | Casting |
| Art | Fabrice Héraud | Set Decoration |
| Production | Olivier Carbone | Casting |
| Production | Fredy Lagrost | Production Manager |
| Art | Yann Richard | Set Decoration |
| Sound | Jean Minondo | Sound |
| Production | Nicolas Lublin | Casting |
| Art | Christophe Graziani | Set Decoration |
| Costume & Make-Up | Catherine Meillan | Costume Design |
| Production | Fabrice Bigot | Casting |
| Costume & Make-Up | Ann Dunsford | Costume Design |
| Art | Cécilia Blom | Set Decoration |
| Art | Jean-Luc Molle | Set Decoration |
