When Ben Affleck was first announced as the new Batman for Zack Snyder's upcoming "Man of Steel" sequel, I openly wondered if the actor would channel the same workout routine that got him ripped for his 2010 crime-thriller "The Town".  In only three months, under the supervision of natural bodybuilder and celebrity nutritionist Rehan Jalali, the 41-year-old achieved the shredded, professional-hockey-player-look he was aiming for. 

"It was horrible, horrible - but all worth it," he told Access Hollywood.

Not surprisingly, Affleck has once again called upon Jaliali to guide his Batman workout.

While there are no specifics yet as to what Affleck is doing to get in shape for the role, Jalali will likely share the routine and diet at a later date as he did for "The Town".

As for the other cast members, we know that Henry Cavill (Superman) has already been lifting out in Salt Lake City and that Gal Gadot (Wonder Woman) is reportedly training under Mark Twight in Tel Aviv, Israel. All of this is happening as director Zack Snyder prepares to start filming for the slated 2015 summer movie next month. 

"It’s going great. I’m very excited," he recently told Hero Complex. "It’s very fun to get into this world with different heroes coexisting in the same universe, but a lot of balls in the air as they say. As a fan, it’s an amazing opportunity. You know, Superman and Batman in the movies have never existed in the same frame together. So it’s an interesting historical thing. We were just testing the suits, right? The new Batsuit and the Superman suit. It wasn’t even with the actors, right? It was just to see ‘em. I was standing there, they were standing next to each other. And I was like, 'Guys, someone take a picture! This has never happened before.' We slightly dork out. Like, 'Are you kidding me?!'"

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Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

Ben Affleck using his 'Town' trainer to become Batman
Natural bodybuilder and celebrity nutritionist Rehan Jalali once again working with the star to transform him into the 'Biggest/Leanest/Baddest Batman' ever.