That was a terrible movie. Horrible. The plot lacked continuity, and by making the movie a reasonable amount of time, many significantly details of the plot were missing. Had I not read the book, I would have been confused. Aside from this, there was no character development. The book was way better.
There were, however, two good things about the movie:
1) Getting to look at Colin Egglesfield
2) John Krasinski’s character was funny and nice to look at