"I feel like I'm in the eye of the hurricane right now," she tells the magazine about her impending fame. "I just recently started cleaning like I'm insane, and I'm starting to think it's my anxiety over the movie. I think it's a bit like, 'I'm just cleaning the refrigerator handle. The movie's not coming out. I'm going to clean it spotless, and then my life will not change.'" It's just scary."
She continues, "I feel like I got a ticket to go to another planet and I'm moving there and there's no turning back, and I don't know if I'm going to like that other planet or have friends there. It's daunting."
Jennifer is no stranger to the spotlight, though. Her role in 'Winter's Bone' earned her a nomination for Best Actress in 2011. Now, with her highly anticipated movie on deck, she'll likely be the talk of the town, even more so than she already is -- not that she's not complaining.
"In some ways, it's a hard life, but it's a great professional life," she says of acting. "I'm doing what I love, and then I get months and months of rest. I have a lot of money for a 21-year-old. I can't stand it when actors complain."
'The Hunger Games' arrives in theaters on March 23, and the April issue of Glamour hits newsstands on March 6.