Dawn of the Dead

The United States is devastated by a mysterious phenomenon that reanimates recently deceased human beings as flesh-eating zombies. Three weeks after it began - despite the best efforts by the U.S. government and local authorities to control the situation -millions of people have been killed and reanimate; social order is collapsing. Some rural communities and the military have been effective in fighting the zombie hordes in open country, but urban centers are helpless and largely overrun. Read more on Wikipedia.