Filmyzilla operates in violation of the Copyright Act of 1957 (India) and the Digital Millennium Copyright Act (US). Downloading Moana from Filmyzilla is theft. Disney and the animators who spent years on the film do not see a penny from these downloads.
For the best viewing experience, stick to official streaming services!
Here is a quick guide on why Moana is a must-watch and where to find the best version: Why Moana is a Fan Favorite