Louis Theroux has long been entertaining us with his fascinating documentaries on everything from insane asylums to LA's dogs. Now however he has decided to take on one of the most controversial institutions of the 21st century - Scientology.

Stairway to Heaven: Louis Theroux and the Church of Scientology will be a feature length documentary with the BBC and made by Oscar winning producer of Man on Wire, Simon Chinn.

The Scientology folk seem to have their eyes firmly on Theroux at the moment though and it's already reported that they are planning a counter documentary on him.

Don't know about you, but all this speculation is only making us want to see what Louis uncovers all the more.

Have a look at the promo pic below, although a release date has yet to be announced.

Scientology have sent Louis Theroux a folder of testimonials on leader David Miscavige