to become an adviser on the project and hired Mark Protosevich to write the screenplay. Robert Rodriguez signed on in 2004 to direct the film after his friend Knowles showed him the script. Recognizing that Knowles had been an adviser to many other filmmakers, Rodriguez asked him to be credited as a producer. Filming was set to begin in 2005, with Rodriguez planning to use the all-digital stages he was using for his production of Sin City, a film based on the graphic novel series by Frank Miller. Rodriguez planned to hire Frank Frazetta, the popular Burroughs and fantasy illustrator, as a designer on the film. Rodriguez had previously stirred-up film industry controversy owing to his decision to credit Sin Citys artist/creator Miller as co-director on the film adaptation; as a result, Rodriguez decided to resign from the Directors Guild of America. In 2004, unable to employ a non-DGA filmmaker, Paramount assigned Kerry Conran to direct and Ehren Kruger to rewrite the John Carter script. The Australian Outback was scouted as a shooting location. Conran left the film for unknown reasons and was replaced in October 2005 by Jon Favreau. Favreau and screenwriter Mark Fergus wanted to make their script faithful to Burroughs' novels, retaining John Carter's links to the American Civil War and ensuring that the Barsoomian Tharks were tall (previous scripts had made them human-sized). Favreau argued that a modern-day soldier would not know how to fence or ride a horse like Carter, who had been a Confederate officer. The first film he envisioned would have adapted the first three novels in the Barsoom series: A Princess of Mars, The Gods of Mars, and The Warlord of Mars. Unlike Rodriguez and Conran, Favreau preferred using practical effects for his film and cited Planet of the Apes as his inspiration. He intended to use make-up, as well as CGI, to create the Tharks. In August 2006, Paramount chose not to renew the film rights, preferring instead to focus on its Star Trek franchise. Favreau and Fergus moved on to Marvel Studios' Iron Man. Return to Disney, Stanton involvement Andrew Stanton, director of the Pixar Animation Studios hits Finding Nemo (2003) and WALL-E (2008), lobbied the Walt Disney Studios to reacquire the rights from Burroughs' estate. "Since I'd read the books as a kid, I wanted to see somebody put it on the screen," he explained. Stanton then lobbied Disney