Disney's live-action Moana has already generated plenty of excitement thanks to Dwayne Johnson returning as Maui and newcomer Catherine Laga'aia stepping into the title role. But one of the coolest creative decisions behind the remake involves the original voice of Moana, Auli'i Cravalho. The idea to involve her in the new movie apparently came from Lin-Manuel Miranda, and the story of how he incorporated her is pretty great.