A rather ordinary plot, made into something more than the sum of its parts, because of those parts. Principally Béart; she absolutely shone in this film. Auteuil plays true to form as quiet and reserved. The music fills the gaps in their relationship, in the dialogue, and in the film. Often, French films are culturally 'lost in translation' when viewed by Anglophones, especially Americans; this is one such case.
My French teacher recently showed this during class, I wasn't expecting it to be great, but I ended up loving this film. I interpreted the ending as full of despair and loneliness, but my teacher thought it was uplifting. I guess the beauty of all films is that they are open to many interpretations that are all sound. Stephan was truly an enigmatic character, his motivations are hard to decipher or understand.
At first, there feels a lack of development on how Auteuil and Beart fall in love, but at the end you believe in the characters, but it's a shame Auteuil and Dussollier don't seem to trust the script. In some cases, you expect Dussollier to care more about losing Camille (believable), and Auteuil speaking his mind.