This is not the Blair Waldorf we're used to!

Leighton Meester stars in a new movie called The Roommate as a nice-seeming college student who turns out to be a crazy, psycho stalker. That about sums it up!

The movie also stars Minka Kelly (Friday Night Lights, Parenthood) Cam Gigandet (Twilight, The OC) and Aly Michalka. Check out our girl in an entirely different light ...

[video url="http://www.tvfanatic.com/videos/the-roommate-trailer/" title="The Roommate Trailer"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.