Goodbye six pack! Matt Damon went on a junk food diet to gain 30 pounds for his role a whistleblower in the new film The Informant. “I definitely got doughy,” Damon tells Entertainment Weekly. “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.” Damon has since lost the weight and returned to his formerly healthy diet. (Photo: WENN)