I think the LOTR movies are about as close as you're ever going to get in most cases. Very few book to film translations manage to capture everything. I can see why they decided to cut out Tom Bombadil and why Jackson removed the Scouring of the Shire. I would have liked to have seen that in the films, but, since he is already often criticized for the final film having five endings, adding a sixth probably wouldn't help! :mrgreen:
I liked the new hobbit film, but found some subtle changes I wasn't huge on and some MAJOR changes that definitely made the story very differenct from the book. They probably do help to drive the story, but, my criticism is, if you felt you needed to pad it to make the films move along, maybe you should have thought about whether or not you actually have three films, totalling nine hours, of material. I think the story lends itself to two films with a total run time of four to five hours.