Alex Gibney's documentary/exposé that's been titilating culture blogs and fomenting the wrath of church of Scientology is almost out. The trailer tells us very little, but what we do know is that what's been called a damning docudrama includes Tom Cruise, evidence of blackmailing celebrities, and a Scientology "prison camp".

Going Clear: Scientology and the Prison of Belief premieres March 29th at 8pm on HBO.