Maybe I got the wrong actress, but wasn't Blanchett in LotR? Her miscasting as the Eleven Queen (or whatever) was the single glaring misstep in the whole awesome movie trilogy, imo. I'm not that familiar with her work, but I'll give you the benefit of the doubt and presume that she's done a lot of good work, as well.
You didn't like the casting of Cate Blanchett as Galadriel? I read the books when I was a teenager and I thought the cinematic Galadriel was very close to my image of her. Its interesting how differently people react to the movie and its casting (people who have read the books first that is). I thought most of the casting was really top-notch, I do think Orlando Bloom needed a few acting lessons before taking on Legolas. Sorry to go OT, but couldn't resist! Thanks for indulging me.
I have learned NEVER to argue with a LOTR fan!!! I know nothing about the books or the movies. However, she's a great actress, as she proved by her spot on portrayal of Katherine Hepburn in the Aviator. She's truly an actress, meaning she just doesn't play herself to varying degrees (take that Julia Roberts) in every movie she's in.