The stars have been happily married since 1998, and the 75-year-old actor reveals taking money issues out of their relationship has helped keep them together.

"I certainly didn't want to be subject to anyone," he tells "This is my third marriage, and I know what trouble can come out of marriage, so I didn't want any reason that I would ever have to be either divorced or married again...

"I have my own money and she has her own money... And that was 20 years ago. We've been in heaven for 20 years, so it works!"

James is also convinced talking through problems with his wife has helped keep their marriage healthy.

"If you ever have any problems my advice to everybody - and my wife knows that I say (this) - call in a referee. Have a discussion. Don't let the guy say, 'Oh I don't want to talk to anybody about that,' or any of that stuff. If... (you) talk it out, what will happen is the problem will just go 'poof!' It'll be gone. Your marriage will be back."

The stars met in 1996, and married two years later (98).

James was previously wed to Jane Cameron Agee and Jan Smithers, but both marriages ended in divorce, and Barbra was wed to actor Elliott Gould before her current husband.