Along with Ashley Judd, Mia Farrow and other celebrities, the former Gossip Girl appears in the new documentary A Path Appears, which shows the stars traveling around the world exploring the effects of gender inequality and poverty and meeting with people who can improve it, according to People.
"I have a new perspective of what it means to have your body sold in this country," Blake said in a clip from the film, referencing her involvement with My Life My Choice, which has a mission to end the sexual exploitation of children. "Not everybody is free. I see how much more opportunity people need."
Meanwhile, Ashley discussed her work with the Magdalene program – a residential program for survivors of sex slavery.
"Sex trafficking is happening 30 minutes from where I'm sitting right now, in Williamson County, Tennessee and in Davidson County, Tennessee," she said in the video. "There's something emotionally inescapable about confronting the problem here in my own county."
Don't forget to tune in to A Path Appears Jan. 26, Feb. 2 and Feb. 9 at 10 p.m. on PBS to see more from Blake, as well as Eva Longoria, Jennifer Garner and more stars discussing sex trafficking in America and beyond.