I'm double vaxxed but if I were to go to the cinema, I don't think I would have much difficulty wearing a mask throughout. I mean, some really go too far with that civil liberties, being gagged or suffocated thing. If I'm in an enclosed space for a couple of hours, I can manage it to protect them from me.... with the obvious exceptions of lowering it for eating and drinking. While I might not get seriously ill now, I don't like the idea of passing it on to somebody who could.
I've seen cosplayers in full gear and helmet on the whole time on occasion, and they must've been boiling. At the same, fascinated about seeing a Star Wars picture from an Imperial Stormtroopers' point of view I guess... A bit of cloth over my nose and mouth? No sweat.