Princess Mononoke:

Set in the remote splendor of the forests of northern Japan, Princess Mononoke is a spectacular "eco-fable" that pits the forces of industry and civilization against the fierce yet fragile natural environment. Drawing on Japanese folklore, myth, and legend, the filmmakers have created powerful gods and spirits who command a lush forest that is being threatened and polluted by the presence of an ironworks. More a chronicle of the struggle between civilization and nature than a battle between good and evil, Princess Mononoke introduces us to such characters as Prince Ashitaka, Lady Eboshi, and, of course, Princess Mononoke herself.