I am not a super big anime fan and only a minimal comic book fan but I saw Warriors of the Wind on VHS years ago and it was restored and released again recently on DVD. The story and animation are magnificent and by Mizazaki of "Spirited Away" fame. DnDChick has written a fantastic and comprehensive d20 Future Rules supplement for the setting and I am hosting them on my site.
Go the the d20 OGC link, bottom right.
Here is more info from Amazon.com
Hayao Miyazaki gained widespread attention in Japan for his complex ecological manga series, Nausicaä of the Valley of the Wind (1982), which he adapted for the screen two years later. One thousand years after a war devastated much of the Earth, humanity clings to existence at the fringes of a vast, polluted forest inhabited by monstrous insects. Only Nausicaä, the princess of the tiny realm of the Valley of the Wind, grasps the environmental significance of the forest. She sees beyond petty wars and national rivalries to the only viable future for the planet. In Nausicaä, Miyazaki began to explore elements he would develop more fully in his later films: daring, compassionate heroines; exciting flying sequences; colorful side characters; strong interpersonal relationships; and a call for an ecologically sustainable way of life. Nausicaä prefigures Sheeta in Castle in the Sky and Chihiro in Spirited Away, just as the rough and ready Asbel anticipates Pazu in Castle in the Sky and Ashitaka in Princess Mononoke. For years, Nausicaä was available in the United States only as the badly re-edited Warriors of the Wind. The new English dub from Disney presents the film in its entirety, with strong vocal performances by Uma Thurman, Patrick Stewart, Alison Lohman, and Edward James Olmos. (Rated PG: violence, frightening imagery) --Charles Solomon