Princess of Mars (retitled and re-released in 2012 as John Carter of Mars) is a 2009 direct-to-DVD science fiction film made by American independent studio The Asylum, loosely based on the 1917 novel A Princess of Mars by author Edgar Rice Burroughs. The film's promotional art mentions how the original story inspired some elements of James Cameron's Avatar, but the credits or promotional material of the film do not mention Edgar Rice Burroughs.