Rockwell was tight-lipped about the details of his comic-book character but did say, “Yeah, he’s a rival. He takes over all the weapons stuff after Tony’s left…I don’t know if he takes over Stark Industries. I’m not really sure yet. He’s a money dude. That’s about all I can say.”
This isn’t the Frost/Nixon star’s first encounter with the blockbuster franchise. He was in talks with Favreau at one time for the part of Tony Stark and his girlfriend Leslie Bibb played a journalist bedded by Stark in the first film.