Kristen as Joan Jett makes #4 on MTV's "Favorite Fierce Heroines Of 2010"

4. Kristen Stewart in The Runaways
Let's be real: Not all of Kristen Stewart's roles are, er, strong female leads. (*Cough*Bella Swan is a whiner*cough*.) But her turn as real-life rocker Joan Jett in the musical biopic "The Runaways" was so fierce, all is forgiven.

Source