Not to say there's nothing to this, but the guys arguments are not very good. First, he's incredibly verbose which has the effect of hiding tenuous connections in oceans of text. Second, the actual parallels sound a lot like standard movie tropes. For instance, I know the importance of engrams in dianetics, but what he describes could just as easily be associated with traumatic memories and overcoming fear. Cliffhanger isn't about dianetics, but we're shown the flashback of him being unable to save the woman a bunch of times, and it's clear that it holds him back until he overcomes that, which sounds like the same thing that happens here.
The logo's not that similar, just because there's a space plane doesn't mean it's a DC-8 from Scientology, the whole thing about valence seems really weak and the Moby Dick reference is ridiculously thin (which he admits).
I haven't seen the movie, so maybe he's right, but this reads like someone went in with the intent to prove that this was based in scientology and so looked at things with a very specific lens.
The logo's not that similar, just because there's a space plane doesn't mean it's a DC-8 from Scientology, the whole thing about valence seems really weak and the Moby Dick reference is ridiculously thin (which he admits).
I haven't seen the movie, so maybe he's right, but this reads like someone went in with the intent to prove that this was based in scientology and so looked at things with a very specific lens.