This is no different in its essentials from any other unimaginative modern action thriller (think Olympus Has Fallen, et al.). The novel had no central hero; the movie has Brad Pitt, with a barely sketched out family. There's also a low-key racist vibe, including expendable Hispanics and zombies who sure look like a collective bad metaphor for Palestinians attacking Jerusalem. It's really, really bad. Get a Criterion subscription and find something better.