Question: Which Cesar Award for best supporting actor winner starred in a movie that was in competition for the Palme d'Or at the 2008 Cannes Film Festival?
Sentence (from "A Christmas Tale"): A Christmas Tale (French: Un conte de Noël ) is a 2008 French comedy-drama film by Arnaud Desplechin, starring Catherine Deneuve, Jean-Paul Roussillon, Mathieu Amalric, Anne Consigny, Melvil Poupaud, Emmanuelle Devos and Chiara Mastroianni.
Relevant evidence: Yes