Festival goers at Cannes but Donald Trump's move against Huawei could be the first salvo in a new kind of Cold War where one of the main battlegrounds could be the entertainment industry. The saga's unfolding smack in the middle of the Cannes film festival, which for a fortnight every year serves as a launchpad to the global cinema box office. The digital age is already rocking the seventh art with Cannes holding out against admitting films by Netflix in competition for the Golden Palm prize.

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