"I was depressed. I had always been susceptible to it. But at the same time as I started to ascend into what would conventionally be regarded as a success, I was going down," he confessed in a new interview with Empire film magazine.
"The more material success presented itself to me, the less I could understand why it wasn’t fulfilling me in any way. It wasn’t that it wasn’t fulling me, it was because I was depressed. It’s not a mood. It’s a condition.”
The 48-year-old actor told how he started to hit the bottle to deal with his depression.
"I just drank more heavily… If you look at Burke & Hare, I’m bloated and fucking dead-eyed…I look at it now and think, 'Fuck me, I was in a dark place then'. I was drunk a lot of the time and I was profoundly unhappy.”
He decided to seek help after he experienced a horrifying blackout.
“I got well in 2010. I stopped drinking. I got a little bit of help," he explained.
Eventually I crashed out. At Comic-Con in 2010 — I’ve never told anyone this — we were promoting Paul and I sort of went missing for about four days. I got back to the UK and just checked myself in somewhere," he revealed.