Surely a strike has geographical boundaries, just because of different rules in different countries (or even states)
With the strike effecting productions in other countries, for example Wicked in the UK. Could the UK workers effected sue or take the stars who's striking has shut down production to small claims court. With the intent of recovering lost earnings? if the strike also included Equity for example, the correct rules would have been followed for balloting for a strike in the UK etc and there would then be legal protection.
Surely when working in the UK an American actor would be protected by Equity if they wanted to join the relevant union, and so should be contractually obliged to work, as they are not in the USA so the fact there is a USA strike should be irrelevant?
What about lets say a post production work house in lets say Canada who had a signed deal to do the effects of a movie that has now not been filmed. Studios can obviously pass the blame, so could the writers or actors responsible for the delay be taken to court?