Next year's Captain America: Civil War kicks off Marvel's nine-movie Phase Three, which will signal major changes within the Marvel Cinematic Universe. During the studio's /captain-america-3-civil-war-logo-robert-downey-jr/October press event, Marvel confirmed the Civil War title, and that Robert Downey Jr. will star as Iron Man, alongside Chris Evans as Captain America and Chadwick Boseman as Black Panther. The story will be based on the Civil War comics, where Tony Stark feuds with Steve Rogers over the Sueprhero Registration Act. The comic book essentially transformed Stark into a villain, as he found himself at odds with his fellow Avengers and even cloning Thor in the process. When asked about the possibility of playing a villain, in a new interview with Empire, Robert Downey Jr. had this to say, hinting that fans will start to see changes in his character in this year's Avengers: Age of Ultron.
"It's natural to change your views. The main thing to me is, what sort of incident could occur, and what sort of framework could we find Tony in? The clues about where we might find him next are in Ultron. But what would it take for Tony to completely turn around everything he's stood for? Joss (Whedon) brings this up all the time. It's kind of weird that these guys would have all these throw downs all over planet Earth and yet when the movie's over, nobody minds. What would the American government do if this were real? Wouldn't it be interesting to see Tony doing something you wouldn't imagine?"
"I wouldn't put it that way. The biggest question is, for Chris and for Cap, how do we bring Cap to a place where people go, 'Man, I never thought I would see such a vast change in Steve.' After you see Snowpiercer, you're like, 'I want to see a little bit of that guy.'"
Robert Downey Jr. also talked about how Marvel wanted to bring him in for the Civil War story line, and how they would have to go in another direction if he wasn't on board.
"They said to me, 'If we have you, we can do this, or Cap 3 has to be something else.' It's nice to feel needed. And at this point it's about helping each other, too. I look at it as a competition and I go, 'Wow, maybe if these two franchises teamed up and I can take even a lesser position, with people I like and directors I respect, maybe we can keep things bumping along.'"