Doraemon: Nobita and the Green Giant Legend

In "Doraemon: Nobita and the Green Giant Legend," the titular character, a perennially underachieving boy, unwittingly becomes the guardian of Earth's fate when a mysterious sapling he encounters transforms into a boy with plant-like powers. With Doraemon's gadgets in tow, Nobita must navigate a perilous world where the survival of humanity hinges on the judgment of dryadic aliens from the Green Planet. The film's lush animation and imaginative plot blend whimsy with ecological urgency, cementing its place as a cornerstone of the Doraemon franchise.