One Raiders of the Lost Ark fansite, theraider.net. has already commented: "the atmosphere of the story is so similar that any Indiana Jones fan will be smitten with this film."
Why doesn't Paramount fess up and re-release this? It'd be worth $20 to see Heston as Steele, searching for a jeweled relic in the Inca Temple of the Sun among real life locations in Machu Picchu (as visible above, but here's a better look at the poster). He's up against a first-rate villain (Thomas Mitchell, of Gone With the Wind, Stagecoach, and many other classics). And then there's the matter of the film's discovery, the debuting "bird girl of the Andes" Yma Sumac. Seen here at YouTube demonstrating her world-famous 5 octave pipes in one of her numbers from the film. Don't believe the horrible lie that Yma Sumac is really Amy Camus from Brooklyn!