Credit: Jeff Vespa/Getty Images

For Paul Giamatti, Sunday night wasn't just about celebrating his Golden Globes win -- it was also an opportunity to pocket some cash.

After nabbing the Globe for Best Performance by an Actor in a Motion Picture -- Musical or Comedy for his role in the flick, Barney's Version, Giamatti charged two people five dollars a piece to snap a pic with his statue during the CAA after party at West Hollywood's Sunset Tower.

"At first they thought he was joking," an onlooker tells "Then he says he's serious, so the guy gives him a ten dollar bill and snaps the photos with his camera phone."

The actor was more humble when it came to discussing his victory (he also picked up a Globe in 2009).

"If it was me, I'd give it to [Johnny] Depp," he told Us backstage. "Great-looking guy!"