EXCLUSIVE: Almost a thousand migrant children separated from their families at the U.S. border during the Trump administration have yet to be reunited with their parents, according to the Department of Homeland Security.

Many other migrant parents might still be waiting to get their children back were it not for the efforts of Immigrant Families Together, a mom-led organization that sprang up in response to the Trump administration’s “zero tolerance policy.” The story of anguished parents helped by IFT is told in the documentary Split at the Root, directed by Linda Goldstein Knowlton. Today, Ava DuVernay’s Array Releasing announced it has acquired rights to the film, with plans to debut it in select theaters and on Netflix on March 3.