"Even though we weren't drinking, it was all about finding our way to the truth of Joe. If I was going to spin myself in circles, that is what I was going to do," he said.
In the film, Cage plays a hard-drinking ex-con whose struggle to maintain control of his life is undermined by his instincts to protect a teen, portrayed by Tye Sheridan, from his alcoholic father. Green, the director, called it a tale of redemption.
"The movie is about whatever you want it to be about," Cage said. "If it is about a social crisis, that's perfectly a good thing to have it be about. For me, it was just about trying to make the character come to life."
He called "Joe" ''one of the most memorable" films he has worked on in his nearly 35-year career
The actor said he has no intention to retire any time soon.
"Film performance is a part of me," Cage said. "That is not to say I don't have fantasies of living a life of contemplation and sitting in the sun, but I can't just sit by the pool with a Mai Tai. I need to work."
"Joe" is among 20 films vying for the coveted Golden Lion, to be awarded in Venice on Sept. 7.