Which documentary  was directed in part by James Cameron, Aliens of the Deep or Earth?
Aliens of the Deep Aliens of the Deep is a 2005 documentary film, directed in part by James Cameron alongside fellow cameraman and friend Steven Quale, who would go on to direct "Final Destination 5" six years later, and filmed in the IMAX 3D format. It was produced by Walden Media and Walt Disney Pictures. Cameron teams with NASA scientists to explore the Mid-Ocean Ridges, submerged chains of mountains in the Atlantic and Pacific oceans that are home to some of the planet's more unusual forms of life.
Rob Nelson (biologist) Robert "Rob" Nelson (b. 1979, Denver, Colorado) is an American biologist, filmmaker, and television personality. He is a regular contributor to the Science Channel documentary series "What on Earth?" Effective spring 2017, he also became the host and participating researcher of the new Science Channel documentary series "Secrets of the Underground", which seeks to answer new as well as long-held legendary mysteries that lie beneath the surfaces of streets, buildings, earth, salt and fresh water, etc. He holds a B.S. in biology and marine science from University of Miami, a M.S. degree from University of Hawaii, Manoa, and a M.F.A. from Montana State University.