They may have already co-starred in two movies together, but leave it to Wu-Tang renaissance man the RZA to know how to get the best out of Russell Crowe by casting him as "the baddest man alive" in his upcoming kung-fu flick.

The RZA told E! Online that Crowe has been signed to co-star beside him in The Man With The Iron Fist, the movie he's co-writing (with Eli Roth), directing and starring in as a weapons-maker in feudal China. He's staying quiet about specifics for Crowe's role, however, saying only:

I won't spoil it for you, but Russell's gonna be the baddest man alive. That man is in fighting shape. That man will knock you out.

It can't just be me who thinks that this movie may be absolutely spectacular, right...?