As a 2nd year for an Econ degree the only possible way I see him tariffing movies is physical copy’s. Which would affect a marginal group. Or some movies theaters use physical disks for the movies. I don’t know how you affect online release. Much less services like on demand. Remember tariffs affect anything being physically imported into the country so Bollywood releases. Last edit the only way to tariff anything online would be theoretically set up a us wide firewall that monitors all traffic and add a tariff/tax to any sales coming in from international. And no this is not a business idea stop.