Secret of the Incas shot in Peru before. Wendell Corey was originally announced as star. In July 1953 Paramount took over Hal Wallis' contract with Charlton Heston and announced he would make the film after he finished "The Naked Jungle". "Secret of the Incas" was filmed on location in Peru at Cuzco and Machu Picchu, the first time that a major Hollywood studio filmed at this archeological site. A sixteen person unit including Heston, producer Mel Epstein and director Jerry Hopper spent a month filming footage in Peru in 1953. Five hundred indigenous people were used as extras in the film. The film also
Hiram Bingham III Pampa), which he named "Eromboni Pampa". However, he did not correctly recognize Vilcabamba as the last capital, instead continuing onward and misidentifying Machu Picchu as the "Lost City of the Incas", as his book titled it. Decades later, Bingham's oversight was rectified by the Andean explorer Vince Lee, whose detailed researches proved that Vilcabamba was indeed the 'last capital' of the Incas. On July 24, 1911, Melchor Arteaga led Bingham to Machu Picchu, which had been largely forgotten by everybody except the small number of people living in the immediate valley (possibly including two local missionaries named Thomas Payne and