Did Cate Blanchett do her own dancing in The Curious Case of Benjamin Button?

Answer 1

According to an interview with Cate (found at http://www.publicbroadcasting.net/wned/news.newsmain?action=article&ARTICLE_ID=1451731): Q. You're not a dancer by trade, but is it true that you had some childhood dance instruction? A. "Yeah, I studied Ballet, but also in drama school the most powerful training for me was the movement training. And look, if I had my way over again, I'd be a Butoh dancer (contemporary dance form originating in Japan), or I'd desperately try and finagle my way into working with (modern dance choreographer) 'Pina' Bausch. So, (in "Benjamin Button") I worked with Michelle Johnston, who was the choreographer."

Answer 2

NO. Cate Blanchett may have done some simple dance moves, but professional ballerina Katherine Crockett was Blanchett's actual dance body double.