When director Jon Favreau and Sarah Halley cast Robert Downey Jr, they glimpsed something magnificent: a more-than-skilled actor who faultlessly portrayed the role of Tony Stark. Despite Favreau's initial decision in choosing a fresh face, he ended up delighted due to his charismatic, natural and comfortable attitude. He did not realise it yet, but he was moulding with the right measures a whole superhero cinematic universe which lasted until today and still goes for more. The filmmakers took the proper time to introduce a character whose production was undecided since New Line Pictures arg...