Theo James shirtless photos surfaced with the release of 'Divergent' movie. The 29-year-old plays the role of Four in the film, one of the leaders and mentors of the Dauntless faction. Since he belongs to the faction known for its bravery and physical strength, it is only apt for him to appear as fit as possible.

Thanks to lengthy hours spent in the gym, Theo James shirtless photos looked attractive. He specifically acknowledges boxing as the reason behind his muscles.

"I wanted Four to be quite muscly, so I had to hit it pretty hard and the director said I had to be much broader. I like to do a bit of boxing, which means you don't end up being a fat b*****d," he told British magazine Heat.

He is likewise tagged as one of this year's silver screen heartthrobs. How does he feel about his female admirers?

"Me imagining myself as a sex symbol is quite funny. It's tricky when you have to take your top off in a film because everyone is going to want to see that stuff. I guess with those scenes it's kind of functional; at least he's physically showing her something. He's not just like, 'Look at my arse,'" he said.

While 'Divergent' is constantly being compared to 'The Hunger Games', James is similarly being likened to Robert Pattinson. Pattinson is likewise a product of Summit Media whose fame dramatically increased when he appeared as Edward Cullen in the 'Twilight' saga.

"With the Robert Pattinson thing, that was very specific. It captured this kind of Gothic, cultural explosion, and I'm not sure it's something that just happens," James said.