Complex sentence: Louis Aubinar (Bob Hoskins), a humble, middle-aged photographer, specializes in religious pictures and works for Norbert, a prestigious religious articles curator, who is launching among others, a series of pictures of the Saints.
Split into simpler sentences: Louis Aubinar (Bob Hoskins), a humble, middle-aged photographer, specializes in religious pictures. His employer, Norbert, a prestigious religious articles curator, has commissioned a series of portraits of the Saints.