best book to film, I would say lord of the rings, it skipped some things like Tom Bombadil, but it worked well enough. The Book Thief's film adaptation was pretty good, I still don't like how they handled the shoulder shrug, the standover man, and the dairy, those where the 3 most important parts of the story to me, but it still worked well despite the fact that they changed those. The reason I find it acceptable is that they still kept the diary, it was just given to her by a different person, in addition they still handled they got the characterization right. The actors were almost all perfect.
Also was I the only one that notice she switched hands, in the start of the story she used her right, but when she wrote in her diary she used her left.
Also worst since I missed that one, I think the Eragon movie, though with other forms of media included the avatar the last airbender movie was atrocious, even if you didn't compare it to the tv show.