maybe is better if they will apply different prices based on the country where they operate, based on fact that even 1$ can be a lot in certain countries
This is certain. For different countries there should be different prices. Since a person will prefer a pirated film than pay a large price for it.
that's the challenge that all service providers must face. which is why , in my opinion, a subscription service is better, than paying by film.
As for the subscription, many people are very negative about this form of payment. It is better if there is an alternative for the user: either subscription or payment for the film.