Avatar: The Way of Water is an upcoming American epic science fiction film directed by James Cameron and produced by 20th Century Studios. It is the second film in Cameron's Avatar franchise, following Avatar (2009). Cameron is producing the film with Jon Landau and is writing the screenplay with Rick Jaffa and Amanda Silver, which is based on a story all three wrote with Josh Friedman and Shane Salerno. Cast members Sam Worthington, Zoe Saldaña, Stephen Lang, Joel David Moore, CCH Pounder, Giovanni Ribisi, Dileep Rao, and Matt Gerald reprise their roles from the original film, with Sigourney Weaver returning in a different role. New cast members include Kate Winslet, Cliff Curtis, Edie Falco, Jemaine Clement, and Brendan Cowell.

Cameron, who had stated in 2006 that he would like to make sequels to Avatar if it was successful, announced the first two sequels in 2010 following the widespread success of the first film, with The Way of Water aiming for a 2014 release. However, the addition of three more sequels (to the first one) and the necessity to develop new technology in order to film performance-capture scenes underwater, a feat never accomplished before, led to significant delays to allow the crew more time to work on the writing, preproduction, and visual effects. Preliminary shooting for the film started in Manhattan Beach, California, on August 15, 2017, followed by principal photography simultaneously with Avatar 3 in Wellington on September 25, 2017. Filming concluded in late September 2020 after over three years of shooting.