This year was the 40th anniversary of the U.S. Supreme Court’s decision in Roe v. Wade. The ruling cleared the way for legal abortion across the U.S., but abortion rights in the country have been incrementally rolled back since that time.

There are now only four doctors in the U.S. that perform late-term (third trimester) abortions. A new documentary titled After Tiller follows these four remaining doctors, who risk their lives and endure nearly constant harassment to provide their services.

The movie’s title refers to Dr. George Tiller, a Kansas doctor who provided late-term abortions. Tiller was assassinated by anti-abortion activist Scott Roeder in 2009.

After Tiller premiered in January at the Sundance Film Festival, and has been floating around the U.S. movie festival circuit since April. The movie is scheduled to have a limited release in New York City this fall. The Daily Beast this week premiered a new trailer for the documentary, showing what appears to be an emotional look at abortion in the U.S. and the most extreme portions of the movement against it.