I might have to leave this board for a few months until the purists settle down if she does! Heh.
Arwen riding the Paths of the Dead will probably be a bridge too far for me, however.
The Sum Of All Fears, anyone? How about ANY Tom Clancy-inspired movie? They get slaughtered regularly, and wind up with little relation to the source at all.
Ask Michael Crichton how he likes the vivisection of HIS work, when he's not busy cashing checks, that is. And Anne Rice has had several public wars with the makers of the "Vampire Chronicles" movies, which were finally ruined.
We should count ourselves EXTREMELY lucky. LOTR was made by a director and production company that cared enough to get the main themes and as much detail as possible correct, WITHOUT "remaking" the "property" into a brainless jumble of cliche's, starring Ben Affleck.
I could go on and on about this, one of my main reasons for loving these films so much. But, why? I can no more talk a person into liking a movie that they have decided they dislike than I can talk them into liking a dish their palate rejects. I liked the movies, I didn't mind the changes(and even liked a few), and that's all that matters.