'Iron Man' comes out this Friday, and Moviefone has an exclusive behind-the-scenes look at the Marvel comic flick. Robert Downey Jr. stars as the title character, a rich inventor who develops a near invincible metal suit to fight off the bad guys.

But how does that suit really feel when its on? How does Iron Man go to the bathroom when he's in his metal gear? Find out the answers to these burning questions and more in this Moviefone feature.