Joe Russo Says Robert Downey Jr. is Cooking Up Something ‘Doomtastic’ and It’s Next-Level

Some actors read their lines and step onto set. Robert Downey Jr. builds worlds before the cameras even roll. For Chaplin, he did not just imitate Charlie Chaplin, he lived him, mastering his walk, gestures, and even learning to play the violin left-handed. As Tony Stark in Iron Man, he studied…