I saw Arwen at Helms Deep! AHHHHH

[Lalaith]

Does anyone know - what was the original plan with Arwen in the films, and at what point did they decide to change it? In the original plan, where did she go after Helms Deep? Presumably not back to Rivendell..and did she bring Anduril to Helms Deep?<BR>Were the changes made only after all the anti-Xenarwen shrieking from Tolkien geeks post-FotR?<BR>So, was the whole going to Valinor/getting sick from the Ring nonsense, material that was reshot after the release of FotR?<P>Frankly, I have never understood why most people here seem to think that it is better to have non-canonical Arwen nearly-going-to-Valinor-and-succumbing-to-mysterious-illness than to have her turning up at Helms Deep with a bunch of other elves who shouldn't be there either.