There are a few reasons why Avatar: The Way of Water took so long to make.
James Cameron’s perfectionism. Cameron is known for his perfectionism and wanted to ensure that Avatar: The Way of Water was the best it could be. This meant spending a lot of time developing the story, the characters, and the visual effects.
The challenges of filming underwater. A large portion of Avatar: The Way of Water takes place underwater, presenting several challenges for the filmmakers. They had to develop new techniques for filming underwater, and they had to train the actors to hold their breath for long periods of time.
The COVID-19 pandemic. The COVID-19 pandemic caused a number of delays in the production of Avatar: The Way of Water. The film was originally scheduled to be released in 2014 but was pushed back several times due to the pandemic.
Despite the challenges, Avatar: The Way of Water is finally here and will surely be a visual spectacle. The film has already been praised for its stunning visuals and epic scope, and it is expected to be a huge box-office success.