Trained at the ENSATT and the CNSAD, he acted for the stage under the direction of Alain Françon, Thomas Ostermeier, Simon Ston… He won the César for Best Male Newcomer in 2000 for his role in C'est quoi la vie? by François Dupeyron, to whom he returned in 2002 for La Chambre des officiers. A fan of arthouse cinema, he notably filmed Son frère under the direction of Patrice Chéreau in 2003. He worked with Lucas Belvaux, Laurent Herbiet, Catherine Corsini, Josiane Balasko, Costa-Gravas… He most recently filmed L’Amant d’un jour with Philippe Garrel and Grâce à Dieu with François Ozon. A screenwriter for his films, he moved behind the camera to direct Le Passager (2005 Venice Film Festival, Jury Grand Prize and Audience Prize at the Belfort Festival) and more recently a documentary, Carré 35 (2017 Cannes festival Official Selection, awarded at the Namur, Tübingen and Annaba festivals).