For years, Jennifer Aniston has been known for her fit physique and, now, she's showing it off in a big way.

In her new movie, "We're the Millers," Aniston, 44, plays an exotic dancer alongside Jason Sudeikis, who stars as a drug dealer. In the below trailer, the former "Friends" star shows off her moves, and strips down to her skivvies.

In an interview with InStyle UK last year, Aniston said that she stays in such great shape by working out five or six days each week, and avoiding junk food. But in spite of her killer body and great looks, the actress realizes that she's getting older.

"You know what makes me feel old? When I see girls who are twenty-something, or the new crop of actresses and think, 'Aren't we kind of the same age?' You lose perspective. Or being offered the part of a woman with a 17-year-old child. It's like, 'I'm not old enough to have a 17-year-old,'" she said.

(In this movie, which will be released this summer, she plays the mother of Emma Roberts, 22, and Will Poulter, 20.)

"Then you realize, 'Well, yeah, you are.'"