Agreed!
Being an adaptation one has to expect that there will be changes: the notion itself of adapting something implies that there must be contractions and modifications. Of course, such principle does not mean that every change produced is justifiable: some naturally are, others are not, which is something PJ seems to have some trouble getting at.
A good adaptation should, I think, keep the original personality of the characters. Yes, minor ones may have to go and be assimilated by more important, but which is taken by which should require consideration: for instance, to put a peaceful character doing the role of a more like warrior one is not exactly good work. And that's what one has with
Arwen: bad adapting work!
Sure, they needed to increase her part, so far so good. But how does that justifiy anything, even a change on the character's personality? More scenes with Arwen and
Aragorn in
Rivendell would do it, a Xena is hardly necessary...unless one is trying to make a more comercial movie, at the expense of a higher quality.
To be honest, PJ is an idiot (in the original sense of the word): he has a lot of ideas - too many, I would add - and seems unable to get a hold of himself, so they keep coming and he keeps adding, even if it means to contradict
Tolkien's mythology or even the movies themselves (like having
elves at
Helm's Deep). He's quite a Monty Python's Leonardo da Vinci: in charge of painting the last supper, he finds himself in the right to do whatever changes he whishes (and anyone who doesn't like it may paint it's own), even if that means to deviate a lot from the original scene. So the painting ends up with 24 apostles (or was it more?), 3 Jesus and one kanguru: it was, afterall, the
last supper, so it might as well be one heck of a party;
Lord of the Rings is a movie, so the guy finds himself in the right to deviate as much as he wants from the original, as if all changes would be justifiable by
the simple fact that one thing is a book, another a movie.
In the name of what does PJ finds himself in the right to change a story that it's not his just because he thinks he should or had an idea he considers to be good - even if it proves to be a contradition - is a question yet to answer. I keep thinking of Christopher Lee's words in the commented version of the
Fellowship of the Ring: the title of the movies does not say PJ's
Lord of the Rings, he said, showing that it's not a personal work of the director. It seems like he acts as it was his own personal
realm to me! Or maybe he lacks the ability to control himself as, unlike during most of his carrier, he now has millions of dollars at his disposal.