In 1985, when she was 14, she saw Charlotte Gainsbourg in her role of the complex young girl in L'Effrontée, a film directed by Claude Miller, identified with Gainsbourg, and so took drama classes in Lyon with the actor and Director Christian Taponard. In 1989, she moved to Paris and spent three years at the Conservatoire (CNSAD). In the early and mid 1990s, she landed her first small roles in films like L'Histoire du garcon qui voulait qu'on l'embrasse, directed by Philippe Harel, and Love, etc., directed by Marion Vernoux. In 1997 she had great success in Germany with Caroline Link's Jenseits der Stille for which she learned German, sign language, and the clarinet. In 1998 she had her first major role in French cinema playing Béa in Thomas Vincent's Karnaval. In 2000 she starred in Chantal Akerman's La Captive, an adaptation of La Prisonièrre, the fifth part of Marcel Proust's A La Recherche du Temps Perdu. In 2001 she won the César Award for Most Promising Actress for her portrayal of Christine Papin, one of the Papin sisters, in Les Blessures assassines (English title: Murderous Maids). The story concerned a young servant woman found guilty of the murder, with her sister's help, of her employer's wife and daughter; it had made sensational headlines in France in 1933.