During the early days of Netflix's DVD service by mail, this was their number one requested foreign language film.
"37,2 Le Matin" - the French title of the film, is a woman's body temperature in Celsius, when she is ovulating.
The yellow jacket worn by lead Jean-Hugues Anglade was discovered in a Parisian flea market by the film's costume designer Elisabeth Tavernier who purchased it for less than $5.
The color Blue appears in almost every shot throughout the film.
The opening beach scenes are Gruissan, near Narbonne.
Frédéric Andréi: When in Paris, Betty briefly goes to the rail tracks and Jules, the postman played by Frédéric Andréi in Diva (1981), also directed by Jean-Jacques Beineix, can be seen walking past her.