If this is the route you want to take, go with 40 yr old virgin. Otherwise pick another movie that'll give him 2nd hand embarrassment like Beverly Hills Ninja. Or, if he starts smoking weed, show him the good stuff and make him hit a fat ass dab (please use proper judgement, that shit can hurt and it feels like you can't breathe if you fuck up)
There really isn't, it's the worst(the best being the parent I suppose, probably unnerving if your child is oedipal to some degree, unless you're from the South or royalty I suppose, careful lol)