Aliens of the Deep is a 2005 American documentary film directed in part by James Cameron alongside fellow cameraman and friend Steven Quale, who served as second unit director on Cameron's Titanic (1997) and later Avatar (2009), 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. It was released on DVD on November 1, 2005.