For actor Brad Pitt, life changed completely when he had children.

"It turns everything on its head," Pitt said in an interview with ABC News' Elizabeth Vargas that aired today on "Good Morning America." "I love it. I love it."

Pitt, 48, and actress Angelina Jolie, 37, have six children. Ensuring a sense of normalcy for their brood - Maddox, 11, Pax, 8, Zahara, 7, Shiloh, 6, and 4-year-old twins Knox and Vivienne - is very important to the recently engaged pair.

Asked what city the family called home, Pitt said they had several "base camps." They spend a great deal of their time in New Orleans, but Pitt said they also have a home in Los Angeles because he and Jolie work a lot there, and they're trying to establish another base in Europe, primarily for their children.

"They get more sense of normalcy there. We're not as hounded at certain places there," he said, speaking of the media attention on his famous family. "France, especially. They have rules about … photographing kids.

"And I think they're more sensitive to it after the Diana incident," he said, referring to the strict regulations governing paparazzi in France after Princess Diana was killed in 1997 in Paris, the victim of a high-speed car crash as her driver attempted to elude photographers.

Pitt also said the French "think they're as cool as anyone else," and allowed his family members to get on with their day. "We're not being bothered" there, he said.

Pitt, a three-time Academy Award nominee, currently stars in "Killing Them Softly." He plays a mob enforcer in the new film, which premiered Monday in New York.

The actor turns 49 next month, and he's already thinking ahead to the big 5-0.

"I've given a lot of thought to it," he said. "You become very aware of time. I think also being a father, you become very - everything's time allocation for me now … spending my time wisely and doing the things that are important to me."

Tune in to "GMA" tomorrow to see the rest of the interview.