Who: Matt Damon for "The Informant"
Total Gained: 30 pounds
How? “I started eating like crazy and drinking dark beer. Between meals on set, I’d eat a No. 1 Value Meal at McDonald’s and then Doritos on top of it. It was absolute heaven.” [NY Daily News]
We Like Him Better ... Sorry, Matt, but you were hot before. We're glad he lost the weight when the movie was over.