For a cheapy-made, poorly-acted scifi movie, They Live has some pretty hard-hitting social commentary that has weathered the last 20 years very well: Aliens coming to invade us won't need to come in with guns blazing -- exploting our own worst tendencies to zone out and go with the flow will work just fine, and the few people who do notice can likely be bought off. Unless, of course, they're Rowdy Roddy Piper.
FuzzyCo grade: A-