Doraemon the Movie 2008: Nobita and the Green Giant Legend
Doraemon the Movie: Nobita and the Green Giant Legend, also known as Doraemon, Nobita and the Green Planet, is an anime feature film that was released in Japan on 8 March 2008. It's the 28th Doraemon film.
Nobita's troubled about what to do with his zero test marks once again. A gust of wind scatters his test papers, and he falls into a garbage dump trying to gather them together again. There he finds a young withered tree that caught one of his papers and he decides to take it home. He tries to plant it in his garden but gets caught by his mother, who doesn't allow him to grow it.