LOTR may have (arguably) raised the bar for adaptations, but The Hobbit has brought it crashing down! There is a perfect example of unnecessary changes to the original text ruining the whole thing
I was a big Peter Jackson fan from the very start of his career, loved all his films up to and including
LOTR - which wasn't a 100% accurate adaptation of the book but was, I think, as good an effort as anyone could have made.
Unfortunately, in making those LOTR films he lost (a) the ability to edit and (b) the ability to use CGI tastefully.
King Kong was a bloated mess,
The Lovely Bones was...... words fail me :( . I can't even bring myself to watch
The Hobbit, I'll probably just get the box set when it comes out in a couple of years (and leave it unopened on the shelf).
But anyway, I think on the whole adaptations of books tend to be much more faithful nowadays than they were many years ago. Partly because today's viewers aren't put off by films more than 90 minutes long, partly because CGI makes it possible to realise "big" stories on lower budgets.
When you go way back to old Hollywood adaptations of classics like Treasure Island, Moonfleet, any Dickens novel etc they bear almost no relationship whatsoever to the books. Even when I was a little kid that used to drive me crazy!