Brad Pitt revealed his pot smoking past while on the HBO talk show, 'Real Time With Bill Maher.' During the show, Bill Maher recalled being at a party with Pitt when he rolled joint after perfect joint -- all night long. "I'm an artist," Pitt joked. The 'Inglorious Bastards' star said he no longer smokes because it turned him "into a doughnut," and he "wants to be alert" now that he has kids.