teenage zombies - invasion of the alien brain thin

humans, succumbing to ray-guns, mind-control and shiny flying saucers, have failed to defend their planet and let it fall easily into the clutches of the big brain and his army of brain thingys. the only hope left for mankind are three teenage zombies that have risen from a graveyard disturbed in the invasion. the undead trio ignores their normal human victims in favor of the pulsing pink brains they see everywhere - all the while being lured to the ultimate lunch: the big brain!