Mel Gibson has gone through a lot of drama in his long Hollywood career. But nothing seemingly comes close to finally quitting his 45-year smoking habit. Moving onto Day 9 without cigarettes, an edgy Gibson spoke to reporters at a press conference promoting his long-awaited return to the screen in 'Edge of Darkness.' The clear message was resuming acting: not so tough. Quitting the cancer sticks: "hellish." More on Mel's "torture" after the jump!