Romance meets farce against the backdrop of a quiet campaign to legalize gay marriage. Laurent loves his roommate Dan, who's straight and a playboy. Laurent can't bring himself to tell Dan, but is content to share a flat and to party with him. Then Camille comes along, Dan falls hard, and Laurent is beside himself: he tries to sabotage the relationship, but each effort backfires. After Dan moves in with Camille, Laurent enlists the help of Sam, his new lesbian flatmate, and Nick, a long-time gay friend. As the lovers head toward marriage, Laurent becomes more desperate. His efforts may be having an effect, if not on Dan, then on Camille. Which love will triumph?
Unfortunately the movie 3 Guys, 1 Girl, 2 Weddings is not yet available on HBO Max.
| Sound | François Castello | Original Music Composer |
| Production | Catherine Burniaux | Executive Producer |
| Production | François Charlent | Executive Producer |
| Production | Anne Leduc | Associate Producer |
| Production | Catherine Burniaux | Producer |
| Production | François Charlent | Producer |
| Camera | Yves Cape | Director of Photography |
| Sound | Pierre Mertens | Sound Engineer |
| Costume & Make-Up | Cécile Cotten | Costume Design |
| Costume & Make-Up | Nathalie Leborgne | Costume Design |
| Costume & Make-Up | Michelle Van Brussel | Makeup Department Head |
| Costume & Make-Up | Antonella Prestigiacomo | Hair Department Head |
| Art | Pierre-François Limbosch | Production Design |
| Editing | Pascal Revelard | Editor |
| Editing | Christophe Nowak | Editor |
| Sound | Cécile Ranc | Sound Editor |
| Sound | Christophe Ferrandon | Sound Mixer |
| Directing | Stéphane Clavier | Director |
| Writing | Jean-Luc Goossens | Writer |
