I agree, MJW's role didn't exactly require an oscar-calibre actress, but I still believe the best actress for the role was Alicia Witt. As far as performance, her abilities are on par with Kirsten Dunst's. But when it comes to looks, she most closely resembles the MJW of the 80's and 90's (recent comics make her look like she's 15, probably some lame marketing ploy). Dunst just doesn't look like any incarnation of MJW, nor does she carry any of her charisma. Bad casting, justifiable in that Dunst happened to be an "it" girl when the movie was being made.