Credit: Dimitrios Kambouris/WireImage; Beiny/Slater/

Jerry Ferrara has won the battle of the bulge.

The actor, 31, showed off his noticeably smaller frame while filming scenes for Entourage's eighth and final season in L.A. Monday. See more photos of Jerry's incredible slimdown.

The Brooklyn-born actor, who split with girlfriend Jamie-Lynn Sigler in late 2009, reportedly lost the weight through hikes in Runyan Canyon and modifying his diet. According to The Daily Mail, Ferrara began trading burgers and fries for tofu, fresh organic fruit and vegetables in 2010.

Though Entourage's final season premieres July 24 on HBO, costar Constance Zimmer recently told Us Weekly that plans for a movie are well under way.

"I haven't seen any 'signed' paperwork, but there's a lot of talk," Zimmer, who plays studio exec Dana Gordon, told Us at Sunday's Elizabeth Glaser Pediatric AIDS Foundation Carnival in L.A. "I think that it's more than a possibility. I actually think that it's going to happen."