Cool shed-cinema idea here - it’s a bit of a bunny…
One would only hope that that is either air conditioned/heated or located in a temperate enough climate. I don’t see a wall unit.
Aye, with no windows could get a bit hot in there.
Edit, some more info here - https://www.toriicinemas.com/classic7seater, with a reference to an air extraction fan (though no real details).