1.Iron Man (2008)
Director Jon Favreau wanted Robert Downey Jr. because he felt the actor’s past was right for the part. He commented: “The best and worst moments of Robert’s life have been in the public eye. He had to find an inner balance to overcome obstacles that went far beyond his career. That’s Tony Stark. Robert brings a depth that goes beyond a comic book character having trouble in high school, or can’t get the girl.” Favreau also felt Downey could make Stark “a likable asshole,” but also depict an authentic emotional journey once he won over the audience.