 Written by Cameron and his friend, Jon Landau, the film was directed by Robert Rodriguez.The film is based on a 1990s Japanese manga series "Battle Angel Alita," depicting a cyborg who cannot remember anything of her past life and tries to uncover the truth.Produced with similar techniques and technology as used in "Avatar," the film starred Rosa Salazar, Christoph Waltz, Jennifer Connelly, Mahershala Ali, Ed Skrein, Jackie Earle Haley and Keean Johnson.