I felt a lot of what was in the book was retained in the movie. Though it is good to read the book as a primer as a bit isn't really left out but more inferred. I loved the movie and was surprised how ambient it was and how little music there was. It made it very gripping. I agree shaky cam is good every now and then. Maybe even 5% of the movie but felt it was TOO MUCH in this movie and felt like the camera was shaking ALL THE TIME. I don't like looking at the screen when it looks like just a blur for endless scene after scene! Would have been 5 stars if I could really focus on the movie but it makes me motion sick when it is just THAT shaky forever and ever.