In 1970, George Lucas needed dozens of actors with shaved heads for his sci-fi dystopian movie THX 1138. He had trouble filling the roles at first, since so few actresses wanted to cut their locks, but Lucas eventually found the extras he needed in a strange utopian community where everyone worshipped sobriety and expressed solidarity by shaving their heads. It was called Synanon, and over the course of three decades it would become one of the weirdest and most vindictive cults of the 20th century.
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