He is going to need to seriously bulk up like Christian Bale did for Batman and back off on the wisecracking (i.e. don't play it like the Human Torch wrapped up in a flag).
1990 Captain America...I think I have that on VHS somewhere. Good lord, what a load. An Italian Red Skull (who does not even look like the Red Skull for most of the movie. I can't even say it's so good it's bad. It's just bad.