Quote Originally Posted by Martok View Post
Galadriel's appearance is a little harder to justify, but not impossible. My guess is that she'll be involved in the White Council's efforts to deal with the Necromancer
Spoiler Alert, click show to read: 
(a.k.a. Sauron)
at his fortress of Dol Goldur in southern Mirkwood. Given both Galadriel's longstanding involvement with the White Council, and her realm's relative proximity to Dol Goldur (I believe Lothlorien is only several days' hard ride south of the fortress), it would make a certain amount of sense for her to have a somewhat larger role than might be otherwise assumed...particularly if Gandalf & Co.'s efforts to take out the Necromancer is given more screen time than in the book.
Ah yes, I had forgotten about that storyline. It's been a long while since I read "The Hobbit", I usually skip it when I decide to re-read the Tolkien books.