Several Hollywood sources are reporting that actress Uma Thurman will be playing the role of a nun in her next film, Girl Soldier.

The movie, MTV reports, is based on Kathy Cook’s firsthand account, Stolen Angels, of the kidnapping and enslavement of 140 Ugandan girls in 1996.

Thurman will play Sister Caroline (Rachele Fassera by birth), who was among a group of interfaith religious who fought to rescue the girls from their captors.

Sister Caroline tracked members of Uganda’s Lord Resistance Army back to their camp and demanded the release of the kidnapped; 110 girls were returned to her, but Sister Caroline refused to abandon the rest.

She rallied parents, the Ugandan government, the U.N., and even the Pope to assist in rescuing all of the children.

“This is a film that had to get made,” Thurman said. “It’s beyond me that in this day and age the exploitation of child soldiers goes virtually unnoticed and unchecked by Western media.”