Hadj Rahim (الحاج رحيم), born in 1934, was the director of the first Algerian invisible camera in 1970. At that time, the director, with few technical and material means of today, had only succeeded thanks to his creativity, his know-how and his love of the profession. Hadj Rahim, who first had to come up with the idea of trapping people, was not only behind the camera but also in front where he often played the role of the trapper, that is to say he also had a real gift of actor.