Downey Jr plays a worthy Oscar-winning actor taking on a role originally written for a black actor, and rather than re-write the part, he goes method.
The star studded cast includes comedians Ben Stiller, Jack Black and Alan Partridge star Steve Coogan.
Clearing anticipating a backlash, Downey Jr told a US magazine: \"If it's done right, it could be the type of role you called Peter Sellers to do 35 years ago. If you don't do it right, we're going to hell.\"
Downey explained that he kept the character from becoming a caricature because he \"dove in with both feet.\"
http://www.youtube.com/watch?v=jhYR1z2-KV0
