I come from the perspective of not having read the book, I first saw this film shown on TV, and both myself and my daughter enjoyed film as a standalone piece. I'm sure that those reviewing this from the stand point of having read the book had some expectations of what they expected from the film, and as is so often the case they fail to reach the standards they had hoped for. Truth is a two hour or thereabouts film has little chance of conveying all that's entailed in a book, from the thoughts of the people, to all the events; which are important, and which are not, or even how the people who read the books would perceive the characters to be or even look like.
Its a difficult task having read the book to divorce that from the film, but as a standalone piece it was enjoyable to watch, and all fell into place nicely. Nothing seemed implausible, and the cinematic views were stunning. So if you know nothing of the book then this may be worth giving a go, taste in film styles depending, this is a story piece similar to Wah-Wah [DVD
] or films of that genre, however if you've read the book, then as you can see from some of the less favourable reviews, you may need to look at yourself first to decide whether or not you could ignore your expectations.