Movie is based on how a virus infects a human race and turn human into zombies(the undead) and humans fight for their existence. talking about cast performances it was an average performance from everyone but brad pitt has his own class. cinematography was good although but the visual effects which were created were really poor as per the standards of the cast and it is a more of a horror movie than a action movie. but if you are having a boring weekend you might have decent time.