You might have heard of Scientology's connections with celebrities like Tom Cruise and John Travolta.
But what you probably haven't heard is the extensive links the so-called religion has down under.
ABC journalist Steve Cannane has just released a book, Fair Game, about Scientology in Australia.
The Nation spoke to him and began by asking what makes Scientology different from well-known religions.
Watch the video for the full interview.
The Church of Scientology offered The Nation the following response:
Steve Cannane has pursued the Church of Scientology for some years as an ABC journalist in Australia. Throughout his coverage of the subject, Mr Cannane has never accepted any facts about the Church that do not fit with his bias. The Church has filed several broadcasting complaints to correct his unfair and inaccurate reporting.
Mr Cannane continues to regurgitate the same well-worn tales in interviews about his book. His claims about the Church have never resulted in any actions against it.
The Church of Scientology is free to practice in New Zealand and Australia, as it is in all parts of the world where it has established a presence. It continues its social reform work with drug education, human rights and mental health reform.
Information about Scientology's beliefs can be found at www.scientology.org.
Church of Scientology of New Zealand