Electric Zombies (2006)

Cult horror director John Specht's low-budget feature, "Electric Zombies," neatly cobbles together two disparate genres: the conspiracy thriller and the horror/slasher movie. It also comments sardonically on the post-9/11 fear of the U.S. government-gone-haywire, as it recounts the tale of a misguided federal project to brainwash "enemies of the state" via cell-phone signals. The signals inadvertently grow in power and become redirected to the U.S., turning unsuspecting civilians into super-obedient zombies whenever their cell phones are answered. They receive self-destructive orders, which they follow will-lessly -- orders running the gamut from self-mutilation to suicide to homicide to riot. Those who manage to escape from falling prey to the menace must find a way to stop the threat -- before the U.S. erupts into unchecked anarchy.