The New Yorker has published an outstanding article/biography of Director and (now former) Scientologist Paul Haggis. It's a 25,000+ word tome about Paul Haggis' experience in Scientology. It also covers other topics like L. Ron Hubbard, life in scientology, scientologist activism, financial, social, and familial costs of membership, dogma, homophobia, violence, and other topics. I highly recommend it to people that want an unsensationalistic view into the life of a high level scientologist and scientology as a whole.
I would post snippets from the article, but at 25K words I don't know where to start. Part of the reason Haggis left Scientology is their overt and covert support of Prop 8. Here it is...
Paul Haggis vs. the Church of Scientology.
http://www.newyorker.com/reporting/2011/02/14/110214fa_fact_wright