Read about it tonight, although I'm sure I heard about it in the past. It's a film by Mike Judge (Beavis and Butthead, King of the Hill, Office Space) about 2 people who are used in some cryogenic type testing. They wake up in 500 or so years to find that everyone left on the planet is borderline retarded.
Going to give it a watch soon because it seemed interesting. I know my synopsis may not be the most appealing thing... Check out the wiki page for it.
Surrender to all Life Beyond Form
Lance of Longinus on Bandcamp
Noise Redemption Prophecy on Bandcamp