As Donald Trump’s fight with Canada over tariffs escalates into a full-blown trade war, content spending by major Hollywood studios in the country hangs in the balance. Under rules set up in Canada, U.S. digital giants — think: Netflix, HBO Max, Disney+ and more — are required to spend a certain amount of money on what’s deemed local content, as in films and shows meant for Canadian audiences. U.S. producers have held up this plan, titled the Online Streaming Act, by appealing the legislation in the courts, and the Trump administration has swept up the issue into their much broader trade fight with its northern neighbor. Now, local…