30 days of night

I just came back from the cinema where I watched the premiere of 30 days of night, one of my fave graphic novels, but unfortunately the movie is disappointing. Obviously Hollywood discovered that a lot of money can be made with movies based on graphic novels, but why the hell are they not able to stay loyal to the original stories, why do they always have to change things in the movies? Since Steve Niles was involved in the making of the movie and also Sam Raimi already proved that he knows what he is doing, I had really high expectations, but well, now I will do what you should do too, I will re-read the graphic novel and forget about the movie.