Despite the brawl, Stallone and Schwarzenegger are actually allies in the movie.  While that means neither man is going in for the kill, it also means better good-natured ribbing, as when the latter tells the former that he punches like a vegetarian.

Stallone stars in Escape Plan, as Ray Breslin, a man who makes his living exposing security holes by breaking out of prisons all over the world.  When he ends up in an experimental futuristic jail of his own design, though, Breslin is the victim of a set-up, abandoned among the prison population.  To break out, Breslin teams up with a charismatic inmate who will help him find his mysterious enemy and regain his freedom.

Part of Stallone's efforts, it seems, involves getting into a brawl with his longtime peer.

Director Mikael Hafstrom isn't an action standby, as you'd expect, but is instead best known for spooky horror tales 1408 and The Rite.

His cast here is obviously led by Stallone and Schwarzenegger, but the supporting players are an eclectic bunch including Amy Ryan, Vincent D'Onofrio, Curtis "50 Cent" Jackson, Jim Caviezel, Vinnie Jones, Sam Neill, and Faran Tahir.

The film hits theaters on October 18th, and we've got three new photos for you: