you couldn't really record the whole movie, and even if you could, it would be jittery and not great resolution.
Not to take the police state's side, but isn't that a technological limit du jour? I wouldn't expect anyone to necessarily be fully aware of any one product's capabilities and limitations, much less the 2012 model vs the 2014 model. (And even if I see Glass(TM) on your face, I don't know that stock hardware is what you're really wearing.) It's basically possible to build a tiny camera (or cameras) that capture in high resolution and maybe stabilize it some way, or correct in software later. I'm not saying it would be easy but you damn well know it'll be easier in 2024. So it's just a matter of where you are on the tech timeline, and I'm going to cut theater managers and FBI guys a little slack on keeping up with what's the latest and greatest, what's cheap enough to possibly be deployed in the in wild right now, knowing a potential perp's resources, etc. And that's especially true before they start talking to him.
We're talking about something that is basically possible, just to some currently inconvenient/expensive/quality-traded-off degree.
[serious part of post ends]
And quality is sometimes tradable without much regret. Sure, I don't want to see a degraded video quality movie where naked chicks, with swords and warhammers, fight mutant dinosaurs which have cyber-implanted machineguns built into their limbs. I want to see that in all its HD glory. But what about a boring movie where a crusty-but-benign grandmother and her estranged formerly-unforgiving daughter finally get to talk about their feelings, and neither one ever shows hers tits or even wears a particularly short skirt that shows a bit of leg (is that asking SO MUCH!?), and there's not a single CGI monster or spaceship of any kind, where most visually-impacting scene is a sunset over the ocean, of such beauty that the daughter finally realizes that eventually time runs out for everyone and we all only have one life, so you better get on good terms with your mother now while you can, regardless of whatever past transgressions or misunderstanding or .. oh, fuck, it's boring to even try to bullshit my way through this. The point is, some movies don't need "great resolution." You've got all that touching dialog.
"Mother, you never approved of William."
"Janice, did you ever stop to think what I gave up, in order to raise my family? But I didn't mind! I loved you all!"
"Why did dad have to die at such a young age? I sometimes wonder, would he be proud?"
"Honey, I didn't want to worry you, but the doctor says..."
And I swear, not once in this movie, will anyone say anything as moving as "I'll distract them by shaking my boobies, and you sneak up behind the Deinonychus and slit its fucking throat."