He's a great actor, in my opinion, one of the best. I'm nost sure I see him as Tony Stark, but I think he would do a better job than DeCaprio, who I heard was attached to a Iron Man film at one point. I just hope it turns out to be a good film and not something like Daredevil or some of the duds. If it's on par with Spidey, the first X-men movies, or even the latest Superman, or Batman, I'd be pleasantly surprised. Afterall, Iron Man isn't one of the "top tier" superheroes. Sure people know about him, but he's not quite the icon that Superman, Batman, Spidey, or even the Hulk are, so there may be a little more temptation to let people change stuff too much and take things off in a bizarre direction, or just not put much effort into it at all and cash in on the comic fans who are willing to go see anything when it comes out.