Many a filmmaker has shot the inner city, the tough neighborhoods, in order to highlight the plight of the locals. In press documents for “Les Misérables” director Ladj Ly has said, “I hope the President [of France] watches the movie, so he can get a sense for what’s going on here.”Making movies is a personal project, innately, but not all stories are autobiographical. This one is. Ly has grown up in the same city of Montfermeil