Desc: Laisse béton: Directed by Serge Le Péron. With Julien Gangnet, Khalid Ayadi, Youcef Rajai, Noëlle Ciccodicola. Brian and Nourredine are two lousy young offenders. Their flights have a motive: a film brought back from San Francisco where the father of Brian, singer of rock of the sixties, today in prison, made a tour.