The real details are still rather shrouded with mystery, but this should be a clue.
Rockwell will als obe playing an enemy, not known yet.Marvel has been keeping a very tight lid on the script for the sequel, being written by Justin Theroux, but it is known that Rourke would play a tattooed Russian heavy named Ivan who becomes Whiplash, a man with deadly, technologically enhanced coils.
Rockwell would play Justin Hammer, a multibillionaire businessman and a rival of industrialist Anthony Stark, AKA Iron Man, being played by a returning Robert Downey Jr.
Rourke and Rockwell would be joining a cast that also includes the returning Gwyneth Paltrow and Don Cheadle, who is replacing Terrence Howard, making for one eclectically cast summer blockbuster.