The actress also struggled to respond the way Collins would have rather than the way she would have if someone had tried to give her a child that was not her own. The scene at the train station where police hand her a boy and try to convince her he's her son was difficult, she said.
"Everything in me is a modern woman," she said. "So it took to try and figure out how to do that and to do that where the audience would be able to watch that scene and not just find it absolutely insane. Because it really did happen and it's crazy."
"Changeling" brought Jolie and Eastwood, the Academy Award-winning director of "Mystic River" and "Million Dollar Baby," together for the first time. Brian Grazer and Ron Howard, who owned the script, asked Eastwood whether he would be interested in directing.
When they asked him how he felt about working with Jolie, who had expressed an interest in the script, Eastwood said, "I feel great about it."
"I'm a big admirer of hers. I think she's terrific, and after working with her I realize it's super terrific," Eastwood told Travers.
The feeling was mutual. "I got the phone call that he was, he was definitely going to do it and was OK with me doing it and I was jumping around the house," Jolie said. "It was like getting my first job, I was thrilled. And it was everything and more that I hoped it would be as an experience."
"It was just the greatest experience I've had working on a film," Jolie said. "And it's probably one of the hardest films I've ever done, with all the balance I needed to find and all the emotion there was. I fell in love with the way he makes films, and his crew and his pace. He's so decisive and he's such a director. It was great."