While watching the footage, Russell calls himself "a proper little junkie." He adds, "This is when you know it's a disease. It doesn't matter that I was sat in that flat in Hackney and now I'm in the Savoy. I'm jealous of me then."It doesn't make a difference to me. The money, the fame, the power, the sex, the women -- none of it. I'd rather be a drug addict."
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In spite of his admission, Russell goes on to discuss the havoc his addiction wreaked on those around him.
"The consequences of my actions affected so many people.
"Heroin is a greedy drug. First it'll take your money. Then it'll take your friends, your family, your car, your house.
"Then it's going to take bits of your body. In the end I used to be scoring with people that had eyes missing, limbs missing.
"You'll take it until it takes your life. It'll take everything until the last thing and you'll gladly give it that rather than give up drugs.
"When you are a drug addict, the idea of not taking drugs is inconceivable.
"This was the beginning of a life-long journey of doing things differently."
In the documentary, Russell also visits the Focus 12 Centre in Suffolk, England where he spent 12 weeks getting clean in 2002.WATCH: Russell Brand humiliates a Katy Perry heckler. WARNING: EXPLETIVES