Filmmakers frequently tout the old "this movie couldn't have been made X years ago" boast, but in the case of "Avatar: The Way of Water," that idea actually holds a lot of weight. The weight of water, to be specific. Given that a vast majority of the movie takes place in and around the oceans of Pandora, the technology to create a believable underwater environment just wasn't available until recently.
In charge of Metkayina Village and the water surrounding it were, respectively, VFX...