Leighton Meester and Minka Kelly in The RoommateLeighton Meester shows her dark side in the upcoming thriller, 'The Roommate.' In the film, she and actress Minka Kelly play eerily similar-looking bunkmates, whose living situation takes a turn for the worst when Leighton's character Rebecca becomes overly possessive.

The movie hits theaters on Feb. 2, but PopEater has an exclusive new clip, in which Meester's character goes a little crazy when her roomie shows up late from a very hot date. Watch the clip. ►►