in my opinion twilight (film) was a disaster....i think it wasn't conected, the picture was bad, many things weren't explained, etc...but it DIDN'T ruined the book for me.....i realy hope they'll make a good film.....but no matter what, the host is nb.1 for me =D
i'm a little scared because it's such a complicated story and i don't want the producers to leave anything out. yes twilight was a huge disaster because they changed the whole story and the picture was horrible but i'm sure that they'll do an awesome job because now stephenie is reaaaally famous so they'll have more budget to make the movie (like in new moon) because they need to get good locations, actors, sound, cgi, visual effects, etc. and like meadow said, the directors made gattaca and it's an awesome movie!!!!
i'm definitely scared they'll ruin the movie because, honestly, i liked The Host better than Twilight. And i know this because i've read the book at least 5 more times than any of the Twilight books. so i'm kind of looking foward to it.