Pretty much like the movie was, with a few minor changes in dialogues. The writing seems a bit rough and awkward in places, but over all, the pacing is much like the movie and its a quick, fun read.
What I DID like about it was that it lets you get into the characters' heads a bit more, gives them a little bit more depth and motivation.
Could use another rewrite or two, but all in all, I did enjoy reading it for the second time.