Question: Where did the story of moana come from?
Disambiguated questions and answers: question: Where did the story of moana come from in 2016 film?
Where did the story of moana come from in 1926 film?
answer: reading up on Polynesian mythology
capturing the traditional life of the Polynesians
Natural Questions answer: Polynesian mythology (from the Wikipedia article "Moana (2016 film)")