"…the product of a film industry in which young women are infiltrating traditionally male genres like action films; female directors and producers are wielding increasing creative influence, and the culture is moving from a sexed-up, dumbed-down model of female adolescence to one marked by smarts, strength and scrap."
While putting in her two cents on the Steinfeld Lead vs. Supporting Oscar argument (she says lead), Women and Hollywood's Melissa Silverstein points out that "as a culture, for some reason we are still shocked when we see young women playing strong roles. It would be no big deal if Mattie was a boy, because boys are expected to have 'grit.' But we still are at a place where strength in girls and young women — like Jennifer Lawrence in Winter’s Bone — is still new enough to excite us beyond just the performance. These films are also statements about the strength in girls and young women."
Keegan spoke to director Zach Snyder, who wants to bring female audiences to the prison-break genre while not turning off men with his upcoming Sucker Punch. He says the film is set “mostly [in] the terrain of men…It’s a challenge economically to find who is the audience…Our hope is that the movie is transcendent.” How is he trying to accomplish this? With rampant CGI, scantly clad schoolgirlish characters holding huge weapons in 3-D with names like "Baby Doll," "Sweet Pea" and "Blondie."
Hollywood tends to portray females as either hyper-sexualized or stripped entirely of their femininity. Both True Grit and Winter's Bone downplay their characters' emotion and sexuality; Mattie Ross winds up an unmarried spinster, while the tomboyish Ree Dolly is fighting to save her family.
Here's more on the Sexualization of Women and Girls on Screen.