Ever since the release of the first 'Iron Man' film in 2008, the Marvel character has become a certified cultural icon, with his likeness appearing on everything from children's backpacks to Burger King meals to boxes of frozen pizza. And with the release of 'Iron Man 3' this Friday, Iron Man's world domination seems almost complete.

But despite being around for quite some time, he's bound to have a few secrets tucked away in his exoskeleton. So, join us as we look at 10 things you may not have known about Iron Man.