Sorry for the late reply, been sorting out my home Instance.

Looking over the cinematic landscape, we are a bit lacking in regional film communities as a whole.

Apart from this, as best as I can find, there's only !britishfilms@feddit.uk, which I also started.

I only started this because I'd started r/categoryiii on Reddit but that was slotting into a large structure:

• r/AsianCinema
• r/ChineseCinema - stated as being for Chinese, HK and Taiwanese films, which is controversial
• r/KungfuCinema
• r/JapaneseCinema
• r/IndianCinema
• r/TamilCinema
• r/FrenchCinema
• r/CinemaBrasil
• r/PersianCinema
• r/AfricanCinema

And on and on.

However, to the best of my knowledge, we have none of that.

So I'd suggest starting at c/AsianCinema and potentially EuropeanCinema,.AfricanCinema, etc and then perhaps pin a post about ways the wiser regional cinema communities could expand.

edit: I was going to suggest lemmy.film would be a logical home but that instance seems to be gone. Pity.