It was directed by Claude Berri, who also wrote the screenplay, and stars Audrey Tautou, Guillaume Canet, Laurent Stocker, Françoise Bertin and Alain Sachs.
Meanwhile, Camille, an artist and cleaning lady, lives a lonely and anorexic life in a small attic in Paris.
One day she meets the shy postcard salesman Philibert, who is in temporary custody of a grand apartment in her building.
Instead he lets his lodger, Franck - who works as a low-ranked cook in a big restaurant - take care of his shopping and other such things.
He works long hours at the restaurant, and habitually spends his only day off going to visit his grandmother Paulette, who raised him.
They hit it off, but in apparent denial of her sexual potency, Camille then has her hair cropped, "manière de petit garçon".
This development is very unwelcome to Franck, who is permanently stressed-out by his work and destresses by drinking, playing angry punk rock, and entertaining women.
Many heated arguments pass between Camille and Franck, the latter annoyed at her presence and the former finding him rude and disrespectful.
This reaches a crisis when, whilst drunkenly directing an erotic dance by his latest nana, he refuses to turn down the music.
Philibert later gives a show for the public, demonstrating considerable comic talent, at the start of which he proposes to his girlfriend on stage.
Camille, who has become close with the old woman, convinces Franck to let her live at Philibert's apartment, where she will quit her unsatisfactory job in order look after Paulette.
Around the same time Franck and Camille, whose relationship turned a corner after the incident with the stereo, enter a period of flirting.