The `Moneyball` actor insists his partner - with who he raises six children - has not totally curbed her formerly wild ways, but he admits it is a side of herself she now likes to keep private.

Speaking on US TV show `CBS This Morning`, he said: "She`s still a bad girl. Delightfully so. It`s not for public consumption."

Brad and Angelina always take their children - Maddox, 10, Pax, eight, Zahara, seven, Shiloh, five, and three-year-old Knox and Vivienne - with them wherever they are in the world and the 48-year-old actor insists their brood are comfortable with their nomadic lifestyle, and it has even helped them learn a sense of responsibility.

He said: "They`re quite used to a bit of jetlag and moving to a new location, as long as we`re together. So the home`s always intact. They`ve got to pack their own bags, and they`re responsible if they leave their chargers behind, and so on and so forth."

The `Tree of Life` star even credits his family for improving his skills as an actor because he no longer worries so much about his professional life.

He said: "[My work has] gotten better because I worry less about it. I mean, it`s not as important as family."
sections: Celebrities