In another scene, two boys, René and Jacquot play doctor with a giggling young girl. Girl seen topless. Jacquot seen nude from both front and rear when undressing. René seen from the rear.
Marcel (Yaniss Lespert, 13) is waking up with no clothes in his bed, he covers himself up with his sheets and as he is about to leave, you can get a quick glimpt of his butt.
Robert (Robert Huth, 6) goes into his parents bedroom, peeks under their covers and finds them (most likely) naked. After brief thinking he takes off his pajamas and joins them in bed.