Lionsgate, via iTunes Movie Trailers , has released this new behind-the-scenes look at The Expendables 2 . Opening in theaters on August 17, the film stars Sylvester Stallone, Jason Statham, Jet Li, Dolph Lundgren, Chuck Norris, Randy Couture, Terry Crews, Liam Hemsworth, Jean-Claude Van Damme, Bruce Willis and Arnold Schwarzenegger.