Not really a movie - but Torchwood; Miracle Day. It's a British tv series that started out with Torchwood seasons 1 & 2 and continued with the best of the group in Torchwood; Children of Men. Probably not for everyone but it's one of my favorite si-fi series. Take it for what it's worth - I also love Lost Girl on the si-fi channel.
If you can see Chuck Norris, he can see you. If you can't see Chuck Norris you may be only seconds away from death.