The 'Blue Jasmine' star said he would be quite happy having a normal job if he has to quit acting, reported Contactmusic.
"I don't think acting is addictive. If I stopped acting tomorrow I really wouldn't care. If you told me that I would have to sell real estate in New York City to look after my family, that would be fine with me," he said.
However, the 55-year-old actor believes acting is a tough business and if anyone is to be successful they must adapt themselves with changing times or let go of the dream.
"So even if a boat came to pick you up, there's a chance you'll say, 'No, I'm going to stay, I like it here'," he added.