Elizabeth Olsen: Sundance's Breakout Star!

Elizabeth Olsen hits the premiere of her movie Martha Marcy May Marlene during the 2011 Sundance Film Festival on Friday (January 21) at the Eccles Center Theatre in Park City, Utah.

The 21-year-old sister of Ashley and Mary-Kate Olsen has been earning rave reviews for her role in the drama thriller.

On Saturday, Elizabeth attended the film’s cocktail reception with co-star Sarah Palson and posed for some pics with director Sean Durkin.

Elizabeth also did a portrait session with her Silent House directors Laura Lau and Chris Kentis.

Up next for the actress, who’s also studying psychology at NYU: Red Lights with Robert De Niro, Sigourney Weaver, and Cillian Murphy!

“I’m so lucky that school is always there for me when I take these little breaks,” Elizabeth told The Hollywood Reporter. “But my education is always a priority.”

10+ pictures inside of Elizabeth Olsen at the Sundance Film Festival…