He appeared scruffy, dishevelled and unshaven as he performed a special effects stunt, which sees him stepping in to help the coastguard on a rescue mission, without the iconic Superman suit.
But his ripped physique was enough to bowl over even the most cold-hearted Lois Lane.
Henry's pumped up torso is a result of a punishing workout schedule which saw him spending hours in the gym in a bid to change his shape, as revealed in a recent interview.
He said: "I'm on 5,000 calories a day. You've got to eat protein first, then a little bit of carbs. You've gotta keep your hunger levels going.
Topless and toned ... Henry CavillSplash News
"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."
The Tudors hunk had a head-start on the muscles while working on his last movie, The Immortals.
But he had to go the extra mile to become Krypton's crimefighting hero, and worked with trainer Mark Twight to alter his outline entirely.
Before taking on the role he said: "It's going to be a different kind of shape. When you see the Immortals shape you'll see what I mean.
"We obviously haven't had the final brief yet, it's going to adapt and change as far as when Mark sees my body adapting to the training he'll go, 'Okay, Henry can do this,' or 'Henry can't 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."
Rescue mission ... Henry films with coastguard actorsSplash News
The 28-year-old actor is joined in the movie by Amy Adams, as love interest Lois and Russell Crowe as his Kryptonian father.
Kevin Costner and Diane Lane will play adoptive parents the Kents and Laurence Fishburne will take on the role of newspaper editor Perry White.
The movie will be released in June 2013.
In costume ... A clean-shaven henry in full Superman garb