"Going Clear: Scientology and the Prison of Belief"
HBO "Going Clear: Scientology and the Prison of Belief"

Veteran documentary filmmaker Alex Gibney returned to Sundance this January with his latest powder keg of a documentary, "Going Clear: Scientology and the Prison of Belief." Like the book on which it's based by Lawrence Wright, it offered up shocking claims about the Church of Scientology sure to rock the public when HBO Documentary Films releases the film.

The extensive and scathing exposé digs into the history of founder L. Ron Hubbard, the real reason behind the breakup of Scientology member Tom Cruise and his now ex-wife Nicole Kidman, what goes on behind the closed doors of its Los Angeles Church and much more over the course of its two-hour running time.

HBO will debut the documentary on Sunday, March 29 at 8pm, with an encore the next night, Monday March 30 at 9pm. Watch the first trailer below:


READ MORE: Sundance: Alex Gibney Premieres His Scathing Exposé on the Church of Scientology