Freedom was made in 1969 or 70. I remember sitting by the pool with Geoff Lewis at that time. His son was less than a year old. Long before video tape, it was celluloid. All the centers and orgs had a copy. It was really well done for its time.
You're obviously a generation younger than even my youngest, so if you don't know who Stephen Boyd and Geoff Lewis are, you should google them, and perhaps watch Ben Hur or Every Which Way But Loose for background.
In the Scientology, that I was involved with, late 60s / early 70s, there were grades 0-4, 5 & 5A (called Power), and grade 6 (R6EW), then the Clearing Course. My wife course suped the solo course which taught the basics of solo auditing for grade 6. There was a b/w film of Ron talking about what we were about to audit. In it, he accurately described, what I had been looking at for ages, and having trouble with. The grade 6 auditing that I did, along with the Clearing Course auditing changed my life 100 fold for the better.
On a different tack, if you ever read "The Right Stuff" by Tom Wolfe, you read about the effect of Chuck Yeager (who first broke the sound barrier) on pilots across the globe for generations. Chuck Yeager had (and has) a slow unperturbed drawl when he speaks. For decades, you could get on any commercial plane, and hear the pilot talking in Chuck Yeager's voice.
LRH has had the same effect. Listen to one LRH tape, then listen to Jack Horner, Alan Walter, etc. Consciously or unconsciously, they mimicked his cadences and delivery.
You might try researching the Library of Congress for films. If they were copyrighted, the LoC probably has a copy.
If you're in LA, you might just go knock on Karen Black or Geoff Lewis' door.
When I heard Boyd's name I knew it must have been pretty early -- he died in '77, after all. Thanks for alerting me to the existence of that movie. So it was directed at the general public, as opposed to the training films?
(I do know who Boyd and Lewis are. One of my favorite bad movies is "The Oscar" starring Boyd and Tony Bennett!)
Unfortunately, I'm pretty limited in the footwork I can do -- I'm on the East coast, so I can only really use what's in books or on the internet. I have a pretty solid assortment of source material though. And I love getting firsthand stuff like this -- even if it's not really usable in the paper, it helps me get a more complete picture in my mind.