It includes comments from Jackson, Bennett, Rivers, Selkirk, Olssen, Funke, Moran, Weta visual effects supervisor Joe Letteri, and Weta special makeup effects supervisor Gino Acevedo, Weta pre-production R&D supervisor Matt Aitken, Weta lead animator David Clayton, Weta 2D sequence supervisor Erik Winquist, and supervising sound editor Ethan Van der Ryn.