Backrooms
I came up with a theory, upon leaving the cinema, that Parsons (known for his anti-ai stance), was attempting to demonstrate the effects of ai getting into filmmaking - uncanny, wrong faces and reconstructions of places, performances which lack humanity, a lack of followable plot, completely disengaging montages, and an all round lack of any kind of sense of a film. If that was the point, he's absolutely nailed it.
Failing that though, I'm very glad I watched it in a cinema, my mind wondered so so often and I couldn't wrap my head around any of it, I didn't care for the characters, I didn't understand them, it was all just a long concept demonstration. The cinematography, sets, and audio design were absolutely spot on, but other than that, nothing to write home about.
I suppose the main issue is, the Backrooms was scary because we didn't understand it. It was wierd, uncomfortable and no one understood any of it, we couldn't comprehend it. In order to make a plot, we have to understand it just a little bit, which makes it less scary. I think any film on this concept was doomed to be relatively weak, and a bad job wasn't done considering. But next time, make a plot please.