Marandin started acting as a child, he played in such films as Les allumettes suédoises (The Swedish matches) and La ville dont le prince est un enfant (The city whose prince is a child).
Philosophy student André Sevrais (played by Naël Marandin) attends a Catholic boys' school in Paris, where he becomes fast friends with his younger schoolmate, a little rebellious boy named Serge Souplier (played by Clément van den Bergh).