I believe JP is questioning your statement that Robert Downey Jr. isn't as well known as Hugh Jackman. I can't speak for the movie going audience in the rest of the world, but, in the United States, I think it's highly debatable that Robert Downey Jr. isn't well known, even compared to the likes of Hugh Jackman. Perhaps that is where the difference of opinion stems. I certainly can't say that, prior to the past year or so, Downey has received the kind of immediate recognition Jackman received as Wolverine in X-Men, but I've known who Downey Jr. is as long as I can remember.