One of the most talked about films from Sundance, it's been picked up by Magnolia Pictures. They release some damn good movies but don't quite yet seem to have much of a handle on distributing them properly. Was Ong Bak their biggest hit?
Either way, the film sounds amazing. It's a horror film that bears a lot of similarities to Stephen King's Cell, although it was in production before that was published. A signal goes out on all TVs, radios, etc. It doesn't turn you into an all out zombie as much as just trigger intense violence, or at least cause much of one's decision making skills to resort towards that. There was an awesome trailer kicking around for awhile, but it appears to have been taken down (understandable, as I think there was a rather big spoiler in the middle of it). Here's a review of the film from Quint of AICN:
http://www.aintitcool.com/node/31335
There are two things that make the film interesting to me: that it's divided into three almost seamless acts by three different writer/directors, and that it appears that this was just a bunch of young guys going out on a limb that stumbled on something special, a REALLY independent film. I can't wait.