"I'm on 5000 calories a day… You’ve got to eat protein first, then a little bit of carbs… you’ve gotta keep your hunger levels going. I’m training two and a half hours a day, pushing my body beyond its normal limits, putting on a lot of muscle mass and just making myself look like Superman," he said about his training regimen.
He also described the first time he put on the suit. "It’s extremely cool. There's no other feeling like it. They just put it on, I turned around and look in the mirror and you can’t really play it cool – you sort of guffaw and laugh. I thought ‘OK, holy hell, this is real, it’s not a joke anymore. This is it…you’re doing it, you’re right in the middle of it.’"
He added that he is focusing on "being as true as I can be to the original character and who the character is."
Man of Steel, scheduled to hit theaters on June 14, 2013, co-stars Amy Adams, Diane Lane, Kevin Costner, Michael Shannon, Antje Traue, Russell Crowe, Julia Ormond, Christopher Meloni, Harry Lennix and Laurence Fishburne.