Russell Crowe has signed on to star opposite RZA in the kung fu film The Man with the Iron Fist.  Speaking to E! Online, RZA (who co-wrote the script and will also direct) wouldn't talk about Crowe's role in the film other than to say, "Russell's gonna be the baddest man alive.  That man is in fighting shape. That man will knock you out."  RZA, who will play "a weapons-making village blacksmith in feudal China", added "It's nerve-wracking.  [Crowe's] a master of the craft. I'm quite sure that I may learn something from him."  Filming is set to begin in December in Shanghai.  Eli Roth is a co-producer and co-writer on the movie.

RZA and Crowe previously worked together in Ridley Scott's American Gangster and even recorded a song together, but the film's producers decided not to use it on the soundtrack.  The two are also co-starring in Paul Haggis' thriller The Next Three Days, which opens on November 19th.