Its not bad and its not good. other than the title it is nothing like the book. if you are inclined to wait for the dvd I can't imagine that you gonna miss much. If you've seen the trailer then you have seen the best parts of the movie.
Looks nothing like the book. However, it does appear to have the Yonkers seen in the trailer. Could be good. Could be great. Could totally suck. I will see it. The idea that they move really fast seems to take away the evolution of a new kind of warfare thar deals solely in mass. It was the slow moving nature that causes the misjudgment of the world armies on how to deal with the walking dead in the book. I hope the swimming dead aspect is shown in the film.
Relentless. This isn't your fathers Superman and I guarantee you haven't seen a live action krytonian like this before. Fast paced and serious in tone I enjoyed every minute. My only concern is that Sndyer presented such an epic tale one might wonder what is left to tell. I go see it but not sure how a sequel bests this story. A must see in the theater!