Following the untimely passing of producer Jon Landau, Alita: Battle Angel fans have taken to social media to call for the sequel to finally be greenlit in his honor. Landau was known for his frequent collaborations with seminal director James Cameron, with the pair having worked together on such major blockbuster hits as Titanic and the Avatar franchise, as well as the fan-favorite cyberpunk action flick, Alita: Battle Angel.