Hepburn's acting for inspiration, particularly in The Philadelphia Story (1940) and Guess Who's Coming to Dinner (1967), as well as Julia Roberts in Erin Brockovich (2000). Hugh Laurie was originally cast as Perry White, but he was unable to film due to commitments to the TV show House; the part went to Frank Langella. Parker Posey was the only actress considered for the role of Kitty Kowalski. Singer offered the role of Jimmy Olsen to Shawn Ashmore but declined due to his commitments to X-Men: The Last Stand; the part went to Sam Huntington. Production Warner Bros. Pictures considered shooting Superman Returns at Warner Roadshow Studios in the Gold Coast, Queensland, Australia. After filming, this could have been used as an attraction for the adjoining Warner Bros. Movie World theme park, but the idea was scrapped for being too expensive. Set construction started in January 2005 at Fox Studios Australia for the film's 60 setpieces, while the start date was pushed back for two weeks. In an attempt to avoid public attention, Superman Returns carried the fake working title of Red Sun during filming. Starting in late March 2005, principal photography lasted until November. Filming of Superman Returns in New South Wales constituted hiring thousands of local workers, generating over $100 million into the local economy. 80% of filming took place at Fox Studios Australia, occupying all nine sound stages. Scenes set in Smallville were shot at Breeza, while the Australian Museum doubled for the Metropolis Museum of Natural History. Design and effects Superman Returns was shot using Panavision's Genesis digital camera. Production designer Guy Hendrix Dyas was influenced by Frank Lloyd Wright's Johnson Wax Headquarters for the design of the Daily Planet. ESC Entertainment was originally set to design the visual effects sequences, but Warner Bros. replaced them with the hiring of Mark Stetson from Sony Pictures Imageworks as the visual effects supervisor. A total of 1,400 visual effects shots were created. The script required a scene of Superman safely delivering a Boeing 777 in a baseball park where computer-generated imagery was used as it would have been impossible to assemble the number of extras for the shots. A second unit crew traveled to Dodger Stadium to photograph elements that were composited into the final images. The scenes of Metropolis was actually a modified version of the skyline of Manhattan. Using footage from the original Superman (1978) film as