Admittedly this movie is the best of the first five, but its plot is so incredibly far off from the book that I actually had to re-read the book because I was so confused.
The movie is long (2 1/2 hours) with minimal plot points similar to the book. There are a lot of humorous moments, a couple of sad times, and terrific special effects.
If you read the books you'll probably be disappointed like with most movies; If you are one that didn't read the books and just watched the movies you'll probably love it.