USA TODAYFive takeaways from Scientology documentaryUSA TODAYDirector Alex Gibney's controversial documentary Going Clear: Scientology and the Prison of Belief, airing Sunday on HBO (8 p.m. ET/PT), premiered at the Sundance Film Festival in January. USA TODAY's Claudia Puig was there and offers these key ...New documentary ramps up pressure on ScientologyNewsOK.comHBO's 'Going Clear' a remarkable glimpse into ScientologyLos Angeles Times'Strange Cult Causing Concern': Scientology came to Dallas in 1956.