World War Z is a zombie movie that mixes a number of sub-genres together. It's global war mixed with survival, gun-ho fights, local low-tech thrill ride, and cure hunting. You'd think that with such a mix, you'd get a mess, but no, Marc Forster pulled it off.
The good. Almost everything. I'll just name the best parts. Very realistic approach, nothing is easy, and characters die. Extremely solid tension, your teeth might ache from all the jaw clenching you'll probably do. Very intense and well made action with eye-popping special effects. Lots of attention to details. A tight scenario that gives the ride of a lifetime. A riveting story that avoids a number of zombie clichés. Great score. Very attaching characters. Finally an American movie with a global event that gives more than just a passing nod to other nations.
The actors. Brad Pitt offers us his action hero type with a coating of realism. The other solid performance, beside the two daughter (and to a lesser degree the wife), is given to us by Daniella Kertesz. The rest of the cast performed well, but nothing distinctive.
The bad. The "I need credentials before I talk to you" is kind of a little bit much, but easily forgivable. The flashback could have been made better. Some little weakness when it comes to some acting of secondary character, but so very few. The plot might be simple, but it doesn't divulge where it's going ahead of time, and there's enough surprise to counteract that.
The ugly. Nothing.
The result. The best zombie movie ever. Also highly recommended to thrill seekers and action lovers.
I highly recommend you see the unrated Blu-ray version which is slightly longer but brings about certain things with just a bit more explanation.