Thereafter he was a co-scenario writer of Jean-Jacques Zilbermann's film Not Everybody's Lucky Enough to Have Communist Parents, and of Assassin(s), directed by Mathieu Kassovitz.
Afterward, he collaborated on screenplays for the films "Not Everybody's Lucky Enough to Have Communist Parents" by Jean-Jacques Zilbermann and "Assassin(s)" directed by Mathieu Kassovitz.