This year she gave birth to their daughter, Shiloh.

"We've both been married before, so it's not marriage that necessarily kept some people together. We are legally bound to our children, not to each other, and I think that's the most important thing," said Jolie, whose new film "The Good Shepherd" is being released this month.

The actress, who is currently working on the film "A Mighty Heart" portraying the wife of murdered U.S. journalist Daniel Pearl, admitted she once lived life too close to the edge.

But she said all that changed once she had children.

"I'm committed to life. I think definitely before my son, I was a little nihilistic," said Jolie.

"I'm starting to be able to see being 50 years old with the kids graduating from high school."