Lionsgate sent this in:

On behalf of Lionsgate, we are pleased to announce that a special behind-the-scenes video from THE EXPENDABLES (which stars WWE Hall of Famer “Stone Cold” Steve Austin) has premiered on iTunes featuring some of the films MMA fighters and MMA training! Check it out now and make sure to tune in again next Thursday for another new episode!

Behind-the-scenes Episode 2:
http://trailers.apple.com/trailers/lions_gate/theexpendables/