If you liked this movie, you should also see: Donnie Darko (2001)Memento (2000)Eternal Sunshine of the Spotless Mind (2004)Blue Velvet (1986)Twelve Monkeys (1995)
A man wakes up to find himself literally alone in the world, and goes about trying to find other survivors, as well as to find out what happened. He suspects that a government research project he was involved in had something to do with the disappearance of everyone. Eventually he finds several other people, and once they begin to trust each other they try to figure out why they were left on earth.