The only bad thing about the book and movie is that you are told via marketing campaigns there are twists, so you spend time trying to figure out all the possible ones...I blame "The Sixth Sense" for this...
It did not let me down. I thought it was great. Minus the two drunk natives in the back row of an empty movie theater, that got into 3 fist fights with each other. Previews hadn't started yet, and I was already breaking up fights. Freaking Alaska, man