Princess Mononoke and Spirited Away heavily influenced ATLA's depiction of the Spirit World, environmentalism, and nuanced, non-traditional morality (where villains are given humanizing depth)
Animation· 2001· Fantasy
by 宮崎 駿 Hayao Miyazaki
千と千尋の神隠し (Spirited Away): 1 recorded work traces back to it.
Works that record this one as a source, with the evidence a contributor gave.