Anne Hathaway might suck out some of the cheer on Christmas Day for those catching her heartwrenching turn as (super-skinny) broken mother Fantine in the Les Misérables film. The Academy Award nominee chatted about the anxiously awaited new movie on The Late Show With David Letterman on December 10, and the host was appalled to hear that Hathaway had lost 25 pounds for the role. Although the actress has revealed a few details about the grueling diet, she insised Letterman wouldn't want to know her exact regimen. “It would make you worry,” she joked. Hathaway also revealed details of her secret wedding at Big Sur, how nervous she was to sing in front of the Les Miz crew and more. Click below to find out why Letterman says dating Anne Hathaway is like “winning a radio contest,” then catch her in Les Miz, in theaters December 25!