Pierre en Séverine Serizy lijken een gelukkig echtpaar, maar Pierre is een druk bezette chirurg en onbewust is Séverine ontevreden. Zij geeft zich over aan vreemde dromen. Via via hoort ze dat een vriendin in een bordeel werkt. Na enige aarzelingen begint ook Severine als prostituee.
Nee, helaas is Belle de jour nog niet beschikbaar op Netflix in Nederland.
| Camera | Sacha Vierny | Director of Photography |
| Sound | René Longuet | Sound Designer |
| Sound | Pierre Davoust | Sound Designer |
| Production | Raymond Hakim | Producer |
| Writing | Joseph Kessel | Author |
| Production | Marc Goldstaub | Production Manager |
| Directing | Luis Buñuel | Director |
| Art | Robert Clavel | Production Design |
| Costume & Make-Up | Yves Saint Laurent | Costume Design |
| Writing | Jean-Claude Carrière | Screenplay |
| Costume & Make-Up | Janine Jarreau | Makeup Artist |
| Writing | Luis Buñuel | Screenplay |
| Production | Henri Baum | Producer |
| Editing | Louisette Hautecœur | Editor |
| Art | Robert Clavel | Set Decoration |
| Visual Effects | Simone Knapp | Creature Design |
| Production | Robert Hakim | Producer |
| Costume & Make-Up | Simone Knapp | Hairstylist |
| Art | Marc Desages | Assistant Art Director |
| Directing | Suzanne Durrenberger | Script Supervisor |
| Crew | Pierre Roudeix | Property Master |
| Directing | Pierre Lary | Assistant Director |
| Camera | Raymond Voinquel | Still Photographer |
| Camera | Philippe Brun | Camera Operator |
