The undead have learned a new trick in the trailer for "World War Z".  I'd call it 'swarming"  You'll see it a couple of times in this trailer and it's pretty frightening. More after the jump.

I seriously enjoyed reading the "Zombie Survival Guide".  After a book full of zombie and survival tips, it presented a few short stories about 'the zombie war'.  It was then followed up by "World War Z" which was supposedly 'more collected stories about the zombie war'.  Now, it's been a while since I read those books, but I don't remember anything like what's in this trailer.  Don't get me wrong, I will make one of my RARE trips to the theater to see this movie, I just think they took the title of the book and chucked most of the source material.  This is also one of those 'fast' zombie movies.  "Fast" zombies really don't make sense to me.  I do like the 'swarming' this is show three or four times in this trailer as I think it's something a mindless eating machine would do, but the speed in which it happens seems a little unrealistic (if you can even put the word 'realism' into a story about zombies.  Anyways, enough of my chatter. If you read the book more recently than me and any of this sounds familiar to you, please comment.