Originally Posted by halfapple
He just doesnt seem like a Tony Stark to me, nor a Valiant Super Hero kind of man.
Robert Downey Jr. is a comedy type actor, from what I've seen.
Iron Man is not comedy, Iron Man is a Bad MoFo!
It may not help (if you think the Hulk stunk), but before Bana was cast in it, he was a stand up comedian, followed by a role as a beefy psychotic prisioner.
So, people can change, and Downey Jr has proven himself capable of such roles (Less than Zero, Kiss Kiss Bang Bang, A Scanner Darkly, etc)
Inspired casting, IMO.