Show a big fat dialog before changing your region: "After changing your payment method to a different country you will no longer be able to download the following movies: .... Would you like to download them before switching?"

> Show a big fat dialog

They do show a warning. Not exactly what you describe, but it’s there in essence.

They provide a vague warning that something might happen. They should warn you specifically what will actually happen.

> They should warn you specifically what will actually happen.

Should they do a better job? You betcha! But I don’t think it’s possible to tell you exactly what will happen in a good UX. One major reason is because distribution rights change all the time, today you might not lose streaming switching from country X to Y, but after switching today, you might lose streaming rights tomorrow.

Refuse to play.

Yeah, do people expect a small startup like Apple Inc. to be able to just say no? Do people think this is a trillion dollar company or something? What a ridiculous idea!