They had a dozen outtakes featuring Sean suddenly freezing up and going into a speech loop, neccessitating the removal of his faceplate so they could access his circuitry.
For the most part, yes. When he was still a struggling pulp fiction writer, he was well known the sci-fi/fantasy community as someone who said that his idea for getting rich would be to create a self-help religion where people paid for therapy dressed as a form of religion. He actually told several people that and there's considerable evidence that much of the backstory of Scientology (Xenu and thetans and all that) was just shit from notes he was working on for a sci-fi novel.
Okay went to Snopes and there is nothing on L.Ron Hubbard doesn't recognize the name, and Scientology is about two short lines about how they claimed copyright and had videos removes from youtube. I find that odd.