Henry Cavill, the Man of Steel himself was at WonderCon in San Francisco this weekend to promote his upcoming visually epic adventure, Immortals — stay tuned for our coverage of that film in the coming days. While there, a few wily fans and journalists were able to get some questions in about his role in Zack Snyder’s upcoming Superman: Man of Steel.

One of the main topics of conversation was how the actor is preparing for the more traditionally buff look of the Kryptonian hero that Snyder is hoping to achieve for his iteration of the Superman franchise.

As we were able to report in our earlier interview with director Zack Snyder, the Man of Steel will indeed be facing a fearsome workout routine. “Henry’s gonna be hitting the iron pretty hard,” laughed Snyder in response. Snyder’s wife, Deborah, explains that he’s already started and that on day one of signing him, Cavill had to meet with the trainer and fight choreographer of 300..

“They’ve put him on a plan. He’s started in England and as of April 1st we have him full time with us for all that training.”

We we able to follow up with Cavill during our participation in a select press event for Immortals. When asked if Superman going to be more of a combative/hand-to-hand Superman than we’ve seen to date, given the level of the training he is engaging in for the role, the actor cautiously responded:

“I’ve only started the aesthetic part of the training so far, as far as all of the fight stuff goes, there’s only so much I can say… and I don’t know how much I can say… so I’ll have to go with nothing (laughing).”

In a separate interview with Movieline, the actor elaborated on the physical look they are working to achieve for his portrayal of Superman.

“I’m not quite in Immortals shape like I was, but I’ve got the base there again. When you see the Immortals shape you’ll see what I mean. We obviously haven’t had the final brief yet [on ‘Superman shape’], it’s going to adapt and change as [my trainer] sees my body adapting to the training. He’ll go, ‘Okay, Henry can do this,’ or, ‘His body will look better like that.’ It’ll be fine-tuned and tweaked as we go along. But I think it’s going to be a different sort of shape from Immortals.”

Given what they Snyder’s had to say about Cavill beginning to train with their fight coordinators, the “buff” build the actor is working to achieve for the role, the scope of the director’s previous work (which includes expansive and elaborate fight/action sequences), and the planned reboot of this character — we continue to maintain the strong possibility that this Superman will take on a more active, physical fighting role. How this will play out in terms of the hero’s nearly omnipotent combat abilities, remains to be seen.

In terms of the appeal of playing iconic, larger than life, characters such as Superman or Theseus in Immortals Cavill said:

“I think in us, when you’re a boy you want to be the hero, the one that’s killing all the ‘baddies.’ I think as an adult, you leave that behind in your childhood and so yes, there is an enormous fun in doing this and being the hero. I suppose that’s the appeal, the only appeal. It’s just escapism and fun to be one of the players in the stories that you read as a kid.”

Superman: Man Of Steel is due out in theaters in December of 2012.

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