How does an actress manage to look luminescent while running for her life through the damp woods? How does she dazzle as she's being tormented by a maniac? Elizabeth Olsen manages to bring the haggard hot and the survivalist chic to her debut film, Martha Marcy May Marlene.

Called "the new supernova in the Sundance galaxy" by the New York Post and a "whipsmart starlet" by Moviefone after Martha Marcy May Marlene premiered at this year's Sundance, 21-year-old Elizabeth Olsen is poised to grab even more attention away from her famous sisters once MMMM opens tonight.

She's radiant on screen, a perfect antidote to the chilling creepiness of her co-star John Hawkes (you may remember him from Lost, in which he played that John Lennon lookalike temple-dweller in the final season, or in about 100 other films and movies dating back to Fantasy Island), who plays her character's cult leader.

Check out the trailer above, and click here to experience probably the eeriest movie site you've encountered in a while (click on "I am a teacher and a leader").

See Elizabeth Olsen in action when Martha Marcy May Marlene opens in select theaters tonight!