SECRET OF THE INCAS is a wonderful 1950's adventure movie that Steven Spielberg based RAIDERS OF THE LOST ARK on. Charlton Heston plays Harry Steele, and he's geared up exactly like Harrison Ford as Indy. Yma Sumac makes a stunning debut as an Inca Princess and shows off her amazing five octave range, singing in ecstasy on the top of Machu Picchu. Together with the mind-blowing scenery of the Peruvian Andes, SECRET OF THE INCAS is a terrific cult movie not to be missed under any circumstances.