गूफ़

After admitting to his parents that he was playing stickball instead of visiting Naomi on the fourth day, Alan throws himself face-up on the couch and puts a newspaper over his face while his shirttails, which are not tucked in, fall back revealing his stomach (at 0:33:39 on the Feature Films for Families version and again at 0:34:25). As his father comes to the couch Alan's shirttails are neatly arranged, covering his stomach and belt (at 0:34:36).