The movie was not in fact about dianetics, it was a play in which the book is used as a subtext. I don't know if dianetics can be subtexted; dianetics can be over-the-top and unpleasantly insular, but dianetics can be no more unpleasantly insular than vaudeville.

I am sure dianetics can be unpleasantly insular, but dianetics can be no