"Take the character of Black Widow, played by Scarlett Johansson. Like the character of Katniss in The Hunger Games, she has skills you might not expect from her if you mistook her for what her unlucky Russian interrogator did—just another pretty face. Black Widow, or Natasha Romanoff, is a more complicated character than Katniss, though. Possessed of numerous languages, secretive, a spy from childhood with a 'very specific skillset,' she's not all good, though she's working for good now—she has, as she says, "red on her ledger." Flawed as she is, as they all are, that only serves to make her more empowering as a role model. You can imagine a young generation of girls watching this movie and thinking they want to be like her, now fighting for good, able to take down aliens and bad men and get bruised and bloody but never give up. As a woman, she's outnumbered in her gender (the other badass woman in the group is S.H.I.E.L.D. agent Maria Hill, who gets fewer lines but still manages to escape and outsmart certain death over and over again while looking beautiful, as does Natasha). Maybe they're pretty girls, but they absolutely get their time to shine alongside and on equal footing with the guys in a non-sexualized way. While they do wear tight-fitting black clothes that reveal their femininity (this is a big-budget movie based on a comic book, after all, and the dudes are wearing some skintight stuff as well), they are not considered "less" either by the men or by each other—or even, gender-equally so, by the villains."
-- Jen Doll, writing for The Atlantic Wire on the blockbuster successof Marvel's The Avengers, and the importance of superheroes