United Kingdom, Jan. 28 -- James Cameron thinks marriage is a "learned art".

The Titanic filmmaker has been married five times and admits that he has only found happiness since tying the knot with his fifth wife Suzy Amis in 2000.

Cameron - who has previously been married to Sharon Williams, film producer Gale Anne Hurd, director Kathryn Bigelow and Terminator star Linda Hamilton - told the In Depth with Graham Bensinger podcast of being five times wed: "Let's contextualise that. That's a fact, but let's look at the fact that I was also married four times for less than a year - actively married.

"There was always a little bit of a long sort of decay curve through separation and divorce, but actively married, cohabiting for one year, fo...