I found the Scientology spot very puzzling, and I also suspect there was an agenda there. Of course, in the '70s, Scientology wasn't nearly as scary as we know it to be today – mainly because it was fairly new and connected with much of the consciousness-raising movements of the time.
Whose voice was that in the ad, anyway? It sounded like Casey Kasem from "American Top 40."
As for whether this whole film was propaganda for Scientology, I'm not so sure. It certainly frowns on psychiatry, but what alternatives does it offer?
Isn't the point though that the 'life control' which Scientology purports to offer, at least in the spot featured in the film, is just as illusory as the 'control' which the scientists believe they can exert over Harry Benson?
Similarly, the priest's belief in the power of prayer does nothing to save him, or Benson for that matter.
Good point. I didn't see Scientology as offering any alternative to cure Harry Benson of his violent tendencies, just as the science wasn't working. (Why exactly do Scientologists take "science" as their root word, anyway? Their beliefs do not appear to be based on science, or at least respected science. I suspect it's for credibility.)
Really, that radio spot may have been added post-production by someone with an agenda ... or not. I just don't know. I wish someone could explain how and why it came to be used in this film.