Galadriel (Lord of the Rings)
Played by Cate Blanchett.
I believe that she appeared in all three of the Lord of the Rings films, but I'm not 100% certain. She is also going to be in The Hobbit, coming out 2012.
"This is Nenya, the Ring of Adament. And I am it's keeper. This task was appointed to you, and if you do not find a way, no one will."
Not made by me, but isn't it pretty?
"Even the smallest person can change the course of the future."