Colin Farrell 'one of the lucky ones,' star talks sobriety

The 37-year-old star revealed on The Late Late Show that his struggles began at an early age, and, at 19, he went to see a counselor because he was feeling "sad," as reported by the Irish Independent.

He said in an interview on The Late Late Show (UK) : 'Miami Vice wrapped ... and I was put on a plane and sent to rehab.'

Battling his demons: Colin Farrell has opened up about his early drug addiction, admitting he was 'out of control' for many years

Farrell said he had a 'high tolerance' for drugs and that he struggled to learn when to stop because he didn't know his limits.

He added: 'I'd gotten out of control - for years I could indulge in certain things ... I had quite a high tolerance for various drugs for years, I thought. "It accumulated to the point where I couldn't put my foot on the brake anymore."

Farrell has discussed his addictions in the past, admitting it was extremely difficult when he finally gave up alcohol and drugs, and tried to live a sober life.

"Basically, I'd been fairly drunk or high since I was 14, so it was a tough life change, and I was dying. I'm one of the lucky ones."