User blog comment:Robertmason567/Why did Australia and New Zealand get to see How To Train Your Dragon: The Hidden World first/@comment-28746451-20190108122817

I think this article would help you:

https://www.cartoonbrew.com/feature-film/where-to-watch-how-to-train-your-dragon-the-hidden-world-before-it-opens-in-the-u-s-168548.html