Earth (2007 film)
Earth is a 2007 nature wildlife documentary film which depicts the diversity of wild habitats and creatures across the planet. The film begins in the Arctic in January of one year and moves southward, concluding in Antarctica in the December of the same year. Along the way, it features the journeys made by three particular species—the polar bear, African bush elephant and humpback whale—to highlight the threats to their survival in the face of rapid environmental change. A companion piece and a sequel to the 2006 BBC/Discovery/NHK/CBC television series Planet Earth, the film uses many of the same sequences, though most are edited differently, and features previously unseen footage not seen on TV. Earth was directed by Alastair Fothergill, the executive producer of the Planet Earth  television series, and Mark Linfield, the producer of Planet Earth's "From Pole to Pole" and "Seasonal Forests" episodes.