I saw the movie this morning and liked the first act quite a bit, but thought it ran out of steam; the third act in the WHO was weak and I hated the ending.
Pitt did a nice job, but the rest of the characters were hard to connect with/root for. Everyone made such a fleeting appearance.
World War Z reminded me a lot more of Contagion than any zombie flick I'm seen.
I will say that I thought the 3D was very nicely done. It wasn't gratuitous (well, I did jump a few times when a zombie flew out of the screen at me!), but mostly it added a wonderful depth to the shots. For example, at the beginning when Pitt was making eggs for breakfast the images aligned perfectly in a Life of Pi/Hugo type way. I was pleasantly surprised by this.
I wouldn't call it a bad movie, but there have been several better this summer already.
Marie: Don't be in such a hurry about that pretty little chippy in Frisco.
Tony: Eh, she's a no chip!