I just finished watching the 1999 film Holy Smoke. It is a flawed but thought-provoking film in which a young Australian woman played by Kate Blanchett falls under the spell of a quasi-Hindu religious leader while traveling in India. Her family in Australia has her abducted and held by an American "exit counselor" played by Harvey Keitel. Sun Myung Moon and his wife Hak Ja Han make cameo appearences in the film; Keitel's character shows the family a video about destructive religious groups--the video shows a montage of footage of the Manson family, Marshall Applewhite and Heaven's Gate, Jim Jones' Peoples' Temple, and the Branch Davidians; it also shows footage of Moon and his wife at a mass marriage ceremony.
People ask me what I think about deprogramming. I am strongly opposed to the practice. Abducting people is a serious felony and it is also morally wrong. While I feel for people trapped in Moon's destructive religion, I also believe that adults have the right to be wrong. While I disagree with aspects of the book, Bromley and Shupe's Strange Gods: The Great American Cult Scare has an informative chapter on the deprogramming controversy which was particularly salient in the 1970's. Prosecution against reprogrammers have put many of them out of business or have made them resort to legal tactics.
What should people do when a loved one joins a destructive group. One legal, ethical, and effective tactic was used by the family of Cathryn Mazer, a NYU student who was lured into Moon's cult in the early 1990's. The family went to the media and staged vigils outside of apartment in which Cathryn was living with other Unification Church members. The footage was used on NBC's Today Show. this led to a lot of bad publicity for Moon's group and it put enough pressure on the Unification Church that it allowed Cathyn's family to speak with her and persuade her to leave the church. For more on this story, check out the BBC video Emperor of the Universe.