EARTH'S MIGHTIEST: When you were going through the casting process, in your mind, what were you looking for? In other words, what qualities did the actor being cast as Captain America have to have?
JOE JOHNSTON: Casting Captain America is really casting two roles...Steve Rogers before and after the transformation from 98 pound weakling to perfect physical specimen. I can't divulge how we're going to do it, but the performance will be Chris Evans from beginning to end. An actor playing Captain America has to embody that backstory and let it inform his understanding of his new self. One of the interesting aspects of the character is the effect that kind of total transformation would have on the his psyche. It gives the character more dimension and the actor playing him a wider range of interesting choices.
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