Indiana Jones and the Kingdom of the Crystal Skull focus on the "Star Wars" prequels. In 2000, Spielberg's son asked when the next "Indiana Jones" film would be released, which made him interested in reviving the project. The same year, Ford, Lucas, Spielberg, Frank Marshall and Kathleen Kennedy met during the American Film Institute's tribute to Ford, and decided they wanted to enjoy the experience of making an "Indiana Jones" film again. Spielberg also found returning to the series a respite from his many dark films during this period, such as "A.I. Artificial Intelligence", "Minority Report", and "Munich". Lucas convinced Spielberg to use aliens in the plot by saying
Indiana Jones original storylines with Indiana Jones in the Lost Kingdom, "Indiana Jones and the Fate of Atlantis", "Indiana Jones and the Infernal Machine", "Indiana Jones and the Emperor's Tomb" and "Indiana Jones and the Staff of Kings". "Emperor's Tomb" sets up Jones's companion Wu Han and the search for Nurhaci's ashes seen at the beginning of "Temple of Doom". The first two games were developed by Hal Barwood and starred Doug Lee as the voice of Indiana Jones; "Emperor's Tomb" had David Esch fill the role and "Staff of Kings" starred John Armstrong. "Indiana Jones and the Infernal Machine" was the