Avatar 2 is one of four planned sequels to the 2009 film Avatar, set to be released in December 2022. The film has been under development since 2010, and completed preproduction in 2017, with much of the motion capture and principal photography completed by early 2020.Originally Answered: What makes the movie Avatar so successful? Avatar succeeded due to a few key identifiable factors. First, and most obviously, it was a stunning leap in 3D technology and effects, making for an incredible in-theater experience that was unlike anything people had seen in many years.