What do you think about scientology ?

I just corious about scientology since I read some issues about the movie star Tom Cruise at tabloid. I did not know anything about it and I want to know too. is it a kind of religion? But if you ask about where we come from. I beleived that we are human who created by God. not from alien race. I think it is have wrote at holybook in some religion. so does in my faith.