Henry Cavill was filmed working out with his shirt off in a recently released video that show’s the Man of Steel actor getting in shape for the role of Superman.

During the video, Cavill is shirtless and sweaty, lifting kettle bells, barbells and dumbbells. He’s shown doing pull-ups and pulls a wheelbarrow loaded with heavy weights, interspersed with clips from Man of Steel and interview segments with the star and members of the National Guard.

Mark [Twight] is probably one of the most incredible people I’ve ever met,” Cavill says in the video of his trainer. “He’s opened my eyes to seeing past what I thought were my limits. He’s a remarkable man, truly. He understands what I’m going through physically. He understands me because he sees what I’m going through as a person, which I think is what makes him such a good trainer.”

The workout video starring Cavill and his Man of Steel costar Antje Traue, who plays General Zod's minion Faora-Ul in the film, is a part of the National Guard advertising campaign called Soldier of Steel. The National Guard approached Warner Bros. to team up for the campaign, which uses Cavill and his character as the face of Soldier of Steel, Maj. Greg Galligan revealed to Mother Jones

Man of Steel opened last weekend, coming in first place at the box office, grossing 125 million.

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