Cannes: 'Les Miserables' director says film is a "warning cry" "We have been 'yellow vests' for years," says director Ladj Ly, whose film 'Les Misérables' is screening in competition at the Cannes film festival. Ly says the film should serve as a "warning cry" about the struggles of people living in the Paris suburbs, and that he sought to avoid clichés while depicting events inspired by his own life. IMAGES AND SOUNDBITES