Actress Leah Remini, best known for her role as Carrie Heffernan on the TV series "The King of Queens," sat down for an exclusive interview with ABC News' "20/20," to talk about her 30 years inside the Church of Scientology, her ultimate decision to sever ties with the Church and her new memoir, "Troublemaker: Surviving Hollywood and Scientology." Watch the full interview on "20/20," Friday, Oct. 30 at 10 p.m. ET.
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