Brad turned Troy into a smoke free zone

To play the Greek hero Achilles in Troy, the most physically demanding film of his career, Brad Pitt gave up something he loved: smoking.

“This guy’s supposed to be the greatest warrior of all time I had to get my butt in shape,” Pitt told Vanity Fair magazine. “I changed my life completely. I quit smoking – and let me tell you, I was a professional smoker and I still miss it. ...

“But I wanted to see how far I could go with my body,” he added. “By the time the movie was over, I’d been on this diet and workout plan for a year.”

Something the 40-year-old actor hopes to add to his life: children with his wife, Friends star Jennifer Aniston, which has become a topic of rampant media speculation.

“It will happen when it happens,” Pitt said.

“I’ve got friends with kids, and I’ve got nieces and nephews, and they just bring out a joy I’ve gotten from few things. I am selfish, so I worry about having to give up my time, but I gotta go see what it’s about,” he said.

“I think I’ve got a lot of stuff to tell them, and the idea of being responsible and setting someone loose in the world sounds really fulfilling.”

Troy, directed by Wolfgang Petersen and co-starring Orlando Bloom and Peter O’Toole, opens in the United States on May 14.