Doraemon: Nobita and the Green Giant Legend (2008)

Name: Doraemon: Nobita and the Green Giant Legend
Genre: Adventure, Animation, Family, Comedy, Science Fiction
Released: 2008-03-08
Duration: 112 min
Cast: Wasabi Mizuta, Megumi Oohara, Yumi Kakazu, Tomokazu Seki, Subaru Kimura

A sapling Nobita discovers is turned into a plant-boy with help from Doraemon, and becomes Earth's only hope at passing judgment from the dryadic aliens of the Green Planet.