I originally read that Oprah Winfrey was being considered for a part in I'm not There.
Actresses to Play Bob Dylan in Film - Aversion.com:
An actress will play the part of Bob Dylan in an upcoming biographical film.
Actually it’s three actresses. Director Todd Haynes tapped Cate Blanchett, Charlotte Gainsbourg and Julianne Moore to be three of seven actors to play Dylan in his upcoming I’m Not There. The actresses will also share the role with Adrien Brody, Colin Farrell and Richard Gere, who will play Dylan’s nontransgendered moments. All six actors are slated to portray Dylan during different times in his life.
