Trump told reporters that he would meet with reps from the U.S. film business to discuss his plan to impose 100% tariffs on foreign-made films.

The entertainment industry reacted with a mixture of alarm and bafflement on Monday after President Donald Trump said he would put a 100% tariff on all movies produced outside the U.S., but issued few details on just how such a levy would work.

While major film and TV unions did not explicitly endorse Trump’s message, they agreed with the sentiment that more production work needs to be done in the US. IATSE, the film union that represents production workers,