New Year's resolutions are around the corner, but some stars have already crossed "get in shape" off their list. "The Sitter" star Jonah Hill, for instance, was the talk of the town when he showed off a slimmed-down figure while promoting "Moneyball" -- a feat quite impressive, considering his co-star was Brad Pitt. Scroll through and see which other celebrities have slimmed down lately.
He says he doesn't like to count the pounds, but it's estimated that Hill lost around 40 pounds this year after seeing a nutritionist. The one thing he didn't lose? His sense of humor. "If I started down the numbers path, I would get no work done," he told Esquire. "It's funny because people are like, 'Oh, is he not funny anymore?'"