The British anti-LGBTQ group Christian Concern is getting some press this week after a London theater cancelled a screening it helped organize for a new movie focusing on people “who are emerging out of homosexual lifestyles.” The movie, “Voices of the Silenced,” was promoted in an email this week by the Alliance for Therapeutic Choice, the parent group of the “reparative therapy” organization NARTH.

A 2016 trailer for the movie, produced by the UK group Core Issues Trust, compares those who advocate “ex-gay” therapy and their allies in other fields to enslaved Jewish people in the first century:

‘Voices of the Silenced’ remembers the Jews ripped from Jerusalem in AD 70 and brought to Rome to quarry stone and build the Colosseum. They were now the property of their masters. Filmed in seven countries and over 50 locations, our exploration compares the cultural captivity of the Jewish slaves in towns destroyed by the Vesuvius eruption in AD 79 with that faced by those silenced in the 21st century, people under an imposed state orthodoxy which reaffirms the ancient idea of pansexuality.

The film’s website states, “Our journey will remind us of some of the key memories in both ancient and modern history to help us discern the destructive drivers of sexual politics that underscore both homosexual and Islamic radicalism.”

American interviewees featured in the film include “conversion therapy” proponents David Pickup and the late NARTH founder Joseph Nicolisi, and Patrick Henry College professor Stephen Baskerville.