What actors and actresses appeared in Les caprices de Marianne - 2008?

You're likely thinking of the 2003 film "Les Caprices de Marianne" directed by Benoît Jacquot. It starred:

* Louis Garrel as Octave

* Juliette Binoche as Marianne

* Daniel Auteuil as Frédéric

* Isabelle Carré as Cécile

* Lambert Wilson as Count Sylvère

There doesn't seem to be a 2008 film by the same name.