But Jolie said that her children were now getting used to new arrivals and "are not really stunned anymore when kids come home".

"You know, somebody asked how (7-year-old) Mad was doing and you know he's just, he's a professional big brother, he's done it so many times," she said.

"And we prepared them, we talked to them about it, they knew it was coming, and they are all just at that great age that they aren't threatened, that they are independent enough not to need mommy and daddy all the time," she said.

Jolie, who won an Academy Award as best supporting actress for her 1999 role as a young psychiatric patient in "Girl, Interrupted," stars in "Changeling" as a single mother whose 9-year-old son is kidnapped in 1928 Los Angeles.