Updated Nov 20, 2015 @ 11:15 am
Credit: Gregg DeGuire/WireImage

Since her children aren’t babies anymore, Angelina Jolie Pitt has to get her “baby fix” somewhere else: on set.

Jolie Pitt, 41, is currently in Cambodia where she’s filming her next movie First They Killed My Father, which has scenes that require hundreds of children.

“I’m surrounded by toys,” Jolie Pitt told People from her production office in Southeast Asian country. “We have 250 children in a scene, so I filled the house, my car, my trailer with toys. It’s my ‘I love babies’ fix.”

First They Killed My Father is about the Khmer Rouge genocide. She says she’s worried “this is going to be the hardest movie” on her maternal side.

“They have to go through a labor camp,” Jolie Pitt says. “They have to cry and scream. My instinct is to want to cut and hug everyone.”

The actress-director has six children with her husband Brad Pitt —Maddox, 14, Pax, 12, Zahara, 10, Shiloh, 9, and twins Knox andVivienne, 7 — and they’re all growing up rather quickly. Pax, the second oldest, has even started working on her sets, she says.

Pitt, 51, and Jolie Pitt recently starred in By the Sea, which was their first on-screen collaboration since 2005’s Mr. & Mrs. Smith. Written and directed by Jolie Pitt, the 1970s France set movie tells the story of a marriage in crisis.

This article originally appeared on People. For more stories like this, visit