In 2002, 20th Century Fox acquired the feature film rights to the Dragon Ball franchise. In the same year, Stephen Chow was approached to direct the film, and although he said he was deeply interested because he is a fan of Dragon Ball, Chow declined the chance to direct. He, however, accepted a role as executive producer via his company Star Overseas. Robert Rodriguez, Mark A. Z. Dippé and Zack Snyder were offered to direct but passed. 20th Century Fox then went on to send the script to writer/director James Wong who accepted. In 2007, James Wong and RatPac-Dune Entertainment co-founder Brett Ratner were announced as director and producer respectively, and the project was retitled Dragonball. Ben Ramsey's first draft was deemed too expensive to shoot, and in the end he wrote about five different drafts of the script following notes from the studio. James Wong wrote the last draft, again according to notes from the studio, but decided to remain uncredited as the co-screenwriter. Chow was a Dragon Ball fan, citing its "airy and unstrained story [which] leaves much room for creation", but explained he would only serve as producer because he believes that he should only direct stories he had created.