Hollywood actress Michelle Pfeiffer has opened up further about her one-time involvement with a cult, where leaders pushed members to exist without food or water. The Scarface star became involved with a controlling couple when she first moved to Hollywood in her early 20s, revealing they attempted to convert the star to breatharianism - a cult which follows the belief that people can live only on the energy from sunlight, and do not need nourishment from food. The actress tells The Sunday Times Magazine, "They worked with weights and put people on diets. Their thing was vegetarianism. They were very controlling. I wasn't living with them but I was there a lot and they were always telling me I needed to come more. "I had to pay for all the time I was there, so it was financially very draining. They believe that people in their highest state were breatharian." The star admits it took a film about the followers of Korean religious leader Reverend Sun Myung Moon's Unification Church she helped her former husband, actor and filmmaker Peter Horton, research that made her realise she was part of a cult. She adds, "We were talking with an ex-Moonie and he was describing the psychological manipulation and I just clicked."