5. '12 Monkeys'
It's 2035 and a horrific virus has killed 99 percent of the population. The survivors live underground in squalid conditions, and they send Bruce Willis back in time to stop the virus before it starts. But they accidentally send him back six years early, and he winds up in a mental institution where he meets Brad Pitt. It's The Stand meets The Terminator, and it's one of the few times that director Terry Gilliam made a movie that caught on with a mainstream audience. Just this past year, it was adapted into a TV series.