Elizabeth Olsen is causing the biggest buzz at the 2011 Sundance Film Festival, as she stars in “Silent House,” the latest horror movie from the team behind 2004’s “Open Water.”

The younger sister of Mary Kate and Ashley Olsen, you know, those twins from TV’s Full House, has come into her own at Sundance.

The adaptation of a Uruguayan film follows a young women who has a supernatural — and bloody — experience in her family’s vandalized summer house. According to The Wrap, 21-year-old Olsen is in every minute of the film, with the camera following her in a single shot for the duration of the movie:

A lot of buzz is surrounding a little horror film that uses a single camera shot to follow a wide-eyed, terrified girl around an abandoned summer house. “It’s called ‘Silent House’,” but the film’s even bigger buzz is around the actress who plays that terrified girl – Elizabeth Olsen – and she is quickly turning into Sundance’s breakout star. Olsen is a 21-year-old senior at NYU’s Film School and the younger sister of Ashley and Mary Kate.