Sorority Row (opening everywhere Sept. 11) stars a bevy of comely ladies -- including The Hills' Audrina Patridge, Step Up 2's Briana Evigan, and Die Hard's Bruce Willis' Rumer Willis -- who try and cover up a prank gone wrong while evading the axe blades of a serial killer.  Yeah, we know you're excited. You don't have to show it to us.

To get you even more amped for screams and low-cut tops, here are a couple of exclusive first looks...

"Opening Scene"

 

"Chugs"