'Secret Of The Incas', 1954, poster
"An Inca legend says the Inca Empire was destroyed by the gods when a gold and jeweled starburst was stolen from the Temple of the Sun centuries ago, and the ancient civilization will spring anew when the treasure is returned. The natives want it but so does Harry Steele (Charlton Heston), an American adventurer of slightly-shady ways who wants it for personal gain, as does his adversary (Thomas Mitchell), a grizzled old man even more into skullduggery than Steele. The latter teams up with Elena Antonescu (Nicole Maurey), an Iron Curtain refugee fleeing from the MKVD. She can help him get a plane and he can help her escape Peru for the relative safety of Mexico.Is there a chance they will end up in a bickering love-hate relationship?...Is there a chance an American archaelogist, Dr. Stanley Moorehead (Robert Young), will come along as one corner of a romantic triangle?...Is there a chance that Yma Sumac (billed third on the posters and ads and special billed in the film), who can't act but can sing, will sing a few songs?...Is there a chance that these trite-sounding questions will develop into a film that is far from trite and vastly entertaining? Dang right, there is. Check it out" (Quoted from IMDb entry)
Clip 1. - (Harry Steele (Charlton Heston) and Elena (Nicole Maurey) walk up from the Urabamba river and refer to Machu Picchu being a place nobody comes up to)
Clip 2. - (In this scene which reminds me very much of the "Map Room" scene in Raiders of the Lost ark, where light diversion is used to locate secret locations. I've brightened up a few scenes so you can see what is happening.)
Clip 3. - (In this closing scene with Yma Sumac singing, it appears like the local Quechua people of Peru were used as extras and some of the scene was filmed in Machu Picchu itself.)
Clips and comments above were supplied by YouTube user Ossadawn.
Here is a spectacular scene with Miss Sumac performing "Taita Inti". Watch out for the high notes!
Clip added by visualguidance