Al Pacino had a "terrible" struggle with alcoholism

He has now told CBS News: "Alcohol is a depressant - like, literally it brings you down.

"(My drinking) got a little worse for a while. It really was terrible. But then, eventually, thank God, it got there."

Al has spent the decades since kicking drink immersing himself in his work - and said he is now busier than ever despite his age.

He added: "I like sitting on the couch. But I keep working. I've got six films. Smaller roles, of course. And they haven't come out yet."

Despite the actor being a Hollywood icon, he said he feels alienated by Tinseltown.

He said: about not being an "LA guy": "No. I don't think so. I still speak English. In LA, they speak Hollywood!"

Al also said finding fame in movies meant nothing to him compared to his love for theatre.

He added about his feeling of a massive high from treading the boards on Broadway: "I'm never gonna do anything else but this. I have found it. I don't care what happens to me, whether I succeed, not succeed - didn't matter. I had this."

Al says in his upcoming memoir 'Sonny Boy' about how his love for the theatre overshadowed money: "Maybe I'll be able to eat or I won't eat. Maybe I'll have money or I won't have money. Maybe I'll become famous. Maybe I won't. Doesn't matter."

The actor added to CBS about his time in the theatre - which led to him being spotted by 'The Godfather' director Francis Ford Coppola and cast in the film: "Didn't matter. That's the freedom. This was where I belonged."