US President Donald Trump has said he will impose a 100 per cent tariff on movies made overseas. (AP PHOTO)US President Donald Trump has said he will impose a 100 per cent tariff on movies made overseas. (AP PHOTO) Credit: AAPPresident Donald Trump says he will impose a 100 per cent tariff on all films produced overseas that are then sent into the US, repeating a threat made in May that would up-end Hollywood's global business model. However, it was not immediately clear what legal authority Trump would use to impose a 100 per cent tariff on foreign-made films. The president had first floated the idea of a movie tariff in May but offered few details, leaving entertainment executives unsure whether it would apply to specific countries or all imports.