Arthur and the Invisibles

Ten-year-old Arthur must find a way to save his beloved grandmother's home from a developer. Remembering his grandfather's story of a treasure, he enters the world of tiny beings who live in perfect harmony with nature. Teaming up with Princess Selenia and her young brother Betameche, Arthur goes in search of the treasure and, along the way, discovers that his long-missing grandfather may not be, after all.