Question: When does the how to train your dragon 3 movie come out?
Disambiguated questions and answers: question: When did How to Train your dragon come out in Australia?
When did How to Train your dragon come out in the United States?
answer: January 3, 2019
February 22, 2019
Natural Questions answer: March 1 , 2019 (from the Wikipedia article "How to Train Your Dragon: The Hidden World")