Here’s a link to a news article and some videos about production (posted before the film was released)

Their Moana is very talented, and their Maui is a local newscaster whose daughters made him audition!

Rachel House still voices Grandma Tala, Temuera Morrison still voices the Chief, and Jemaine Clement still voices Tamatoa.

Rob Ruha and Jemaine Clement translated and rearranged the music so that the songs still worked while sung in a different language, which is super impressive.

Also: Air New Zealand will feature the Maori version on their in flight entertainment starting in November!