“In terms of alcohol and drugs, yeah.

But that had nothing to do with fame, though,” Cooper admits.

“But I was lucky, y’know?

Bear Grylls and Bradley Cooper

Bradley Cooper and Bear Grylls.National Geographic for Disney/Jeff Ellingson

I got sober at 29 years old.

And I’ve been sober for 19 years.”

“It was Will saying that to me.

Bradley Cooper

Bradley Cooper.Jamie McCarthy/Getty Images

I’ll never forget it…

It changed my entire life.”

So I couldreallylet myself go."