The 'Seven Psychopaths' star, who battled alcohol and drug addictions for years, eventually decided to get clean and went to rehab in Antigua in 2005, reported Daily Star.
"Obviously I'm not a doctor but you don't have to have a degree in medicine to know when your body's shutting down. I genuinely didn't think I had much longer.
"I'd reached the point where the only voices that had any clarity in the room were the voices of destruction and obliteration," he said.
The 36-year-old said he has always had an addictive personality and would obsess about particular kinds of food from a young age.
"I've been an addict since I was a kid. I'm not joking man - you can ask my mother. I had a Lion Bar addiction for six months when I was seven. Then I had a Coco Pops addiction. I'd go on Smash mashed potato binges, tins of tuna benders. Anything. I'd get addicted to a crosswind. Whatever made me feel good."