With ‘Iron Man,’ Downey winks at his past

“If I see somebody who is throwing their life away with both hands and is raging around and destroying their family, I can’t understand that person,” he said. “I’m not in that sphere of activity anymore, and I don’t understand it any more than I understood 10 or 20 years ago that somehow everything was going to turn out OK from this lousy, exotic and dark triple chapter of my life. I swear to God I don’t even really understand that planet anymore.