I'm a fan of Incredible Shrinking Man (but then I dig just about anything which involves Richard Matheson) as well as several others, including Attack of the Crab Monsters which is fun little Corman flick.
^^^ Cargo sounds interesting. From the synopsis, it sounds like the Matt Damon flick Elysium may have ripped it off, as it, too, involves the wealthy living in orbiting stations while the poor remain on earth below.
Oh Lord-how did I possibly forget THEY LIVE? Also add ANDROID and I think TARGET EARTH. Trouble with TARGET EARTH is that I've not seen it since my early teens, so I can't speak with absolute confidence. I may have a radically different reaction to it today.