Step Up 2 the Ring

After we broke the story that Michael Fassbender would be in Knockout, Steven Soderbergh's action-vendetta picture starring Mixed Martial Arts champion Gina Carano, the rest of the casting notices quickly fell into place, with The Playlist reporting that Michael Douglas, Dennis Quaid, Ewan McGregor had all signed on. Now they report that Channing Tatum, the pretty-faced pugilist of Fighting and G.I. Joe: The Rise of Cobra, has also joined the super smash melee. Tatum's part is small -- he plays a military commando sent to retrieve Carano after she goes Palin. For more spoilerific details, head to Playlist. [Playlist]