i have love this film since i first saw it . there aren not many film that have me in stitch with laughter and but this one sure do . walter matthau be perfect a mr. wilson and joan plowright give a very heartfelt performance a martha wilson . lea thompson be great a dennis mother and christopher lloyd be so delightfully icky a switchblade sam he look like he bath in oil slick and then raid a mental patient wardrobe . and those teeth . i just about fall of the couch during the sabotaged toiletry scene the scream that matthau let loose upon use the nasal spray be priceless . and do not get me start on the scene where dennis break mr. wilson dentures and replace them with chicklets . one of my favourite kid film and one i will no doubt keep come back too . highly recommended .