Elizabeth OlsenWhen one mentions an "Olsen," people immediately assume it's either Mary-Kate or Ashley. But it's the famous twins' younger sister, Elizabeth Olsen, who's making headlines now.

Olsen, 21, is currently taking time off from her studies at NYU, and is promoting not one, but two films at the Sundance Film Festival, according to the Huffington Post.

She gets her first glimpse of the spotlight in 'Martha Marcy May Marlene,' where she plays a young woman trying to reclaim her identity after escaping a cult. And Olsen, who, according to the Internet Movie Database, hasn't had a film role since 'The Adventures of Mary-Kate & Ashley,' understands the importance of her new role.

"It's hard for independent films when they want to get money," Olsen told the Huffington Post. "And to have a lead be an unknown -- it's kind of a risk for people to take. And so the fact that they took that risk was like made my year, my life ... It was really exciting."