Writer/director James Cameron of 'Avatar 2' speaks onstage during CinemaCon 2016 as 20th Century Fox Invites You to a Special Presentation Highlighting Its Future Release Schedule at The Colosseum at Caesars Palace during CinemaCon, the official convention of the National Association of Theatre Owners, on April 14, 2016 in Las Vegas, Nevada. Photo by Alberto E. Rodriguez/Getty Images for CinemaCon