Which documentary  was directed in part by James Cameron, Aliens of the Deep or Earth?
Earth (2007 film) Earth is a 2007 nature 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 to the 2006 BBC/Discovery television series "Planet Earth", the film uses many of the same sequences, though most are edited differently, and features previously unseen footage.
Lost Worlds (TV series) Lost Worlds is a documentary television series by The History Channel that explores a variety of "lost" locations from ancient to modern times. These "great feats of engineering, technology, and culture" are revealed through the use of archaeological evidence, interviews with relevant experts while examining the sites, and CGI reproductions. These visual re-creations take the form of rendered 3D environments and photo manipulated overlays, allowing the "lost world" to be seen over its present-day state.