I read it and wrote this, but I didn't know they'd make it this soon. I greatly enjoyed the book, so I'm a little excited, which I rarely get (if ever), about the movie.
When I watched the trailer, I noticed that this was directed by Timur Bekmambetov. I remember watching a vampire or something movie he had done a few years back, which had some interesting shot sequences. He then went on to direct Mr. Tumnus and Angelina Jolie in "Wanted". Very creative mind's eye he seems to have.