Avatar (2009 film) at additional panels to promote the film, speaking on the 23rd and 24th respectively. James Cameron announced at the Comic-Con Avatar Panel that will be 'Avatar Day'. On this day, the trailer was released in all theatrical formats. The official game trailer and toy line of the film were also unveiled on this day. The 129-second trailer was released online on , 2009. The new 210-second trailer was premiered in theatres on , 2009, then soon after premiered online on Yahoo! on , 2009, to positive reviews. An extended version in IMAX 3D received overwhelmingly positive reviews. "The Hollywood Reporter"
Avatar (2009 film) telling the story of the movie, but it would go into much more depth about all the stories that we didn't have time to deal with", saying that "Jim wants to write a novel that is a big, epic story that fills in a lot of things". In August 2013 it was announced that Cameron hired Steven Gould to pen four standalone novels to expand the "Avatar" universe. Cameron chose Ubisoft Montreal to create an "Avatar" game for the film in 2007. The filmmakers and game developers collaborated heavily, and Cameron decided to include some of Ubisoft's vehicle and creature