Question: Who is the director of the film for which Roschdy Zem shared the award for Best Actor at the 2006 Cannes Film Festival?
Sentence (from "Days of Glory (2006 film)"): The cast includes Sami Bouajila, Jamel Debbouze, Samy Naceri, Roschdy Zem, Mélanie Laurent and Bernard Blancan.
Relevant evidence: No