<P> Frank Darabont, who wrote various Young Indiana Jones episodes, was hired to write in May 2002 . His script, entitled Indiana Jones and the City of Gods, was set in the 1950s, with ex-Nazis pursuing Jones . Spielberg conceived the idea because of real life figures such as Juan Perón in Argentina, who protected Nazi war criminals . Darabont claimed Spielberg loved the script, but Lucas had issues with it, and decided to take over writing himself . Lucas and Spielberg acknowledged the 1950s setting could not ignore the Cold War, and the Soviets were more plausible villains . Spielberg decided he could not satirize the Nazis after directing Schindler's List, while Ford noted, "We plum (b) wore the Nazis out ." </P> <P> Jeff Nathanson met with Spielberg and Lucas in August 2004, and turned in the next drafts in October and November 2005, titled The Atomic Ants . David Koepp continued on from there, giving his script the subtitle Destroyer of Worlds, based on the J. Robert Oppenheimer quote . It was changed to Kingdom of the Crystal Skull, as Spielberg found it more inviting a title and actually named the plot device of the crystal skulls . Lucas insisted on the Kingdom part . Koepp's "bright (title) idea" was Indiana Jones and the Son of Indiana Jones, and Spielberg had also considered having the title name the aliens as The Mysterians, but dropped that when he remembered that was another film's title . Koepp collaborated with Raiders of the Lost Ark screenwriter Lawrence Kasdan on the film's "love dialogue ." </P> <P> Unlike the previous Indiana Jones films, Spielberg shot the entire film in the United States, stating he did not want to be away from his family . Shooting began on June 18, 2007, in Deming, New Mexico . An extensive chase scene set at the fictional Marshall College was filmed between June 28 and July 7 at Yale University in New Haven, Connecticut (where Spielberg's son Theo was studying). To keep in line with the fact the story takes place in the 1950s, several facades were changed, although signs were put up in between shots to tell the public what the store or restaurant actually was . </P> <P> Afterwards, they filmed scenes set in the Amazon jungle in Hilo, Hawaii until August . Indiana Jones and the Kingdom of the Crystal Skull was the biggest film shot in Hawaii since Waterworld, and was estimated to generate US $22 million to $45 million in the local economy . Because of an approaching hurricane, Spielberg was unable to shoot a fight at a waterfall, so he sent the second unit to film shots of Brazil's and Argentina's Iguazu Falls . These were digitally combined into the fight, which was shot at the Universal backlot . </P>

Where was the waterfall scene in indiana jones filmed