Approved | | Horror, Sci-Fi
A mad doctor builds a robot in order to steal a valuable Aztec treasure from a tomb guarded by a centuries-old living mummy.
At one point a character causes the mummy to retreat by showing the mummy a cross. This suggests that a mummy which has been entombed for centuries knows the significance of a crucifix.
The Aztecs practiced cremation, not mummification. The Inca practiced mummification.
There are two different US versions of this film: One is the American International Pictures print with the original atmospheric music score (complete with classical music pieces), and during the climactic fight between Popoca and the Human Robot, Popoca had a scary, menacing voice (ie. groaning and roaring). Another is the 1964 rerelease by Young Horror Club of America, with a completely redone (and loopy) music score, somewhat different title cards, and the voice of Popoca (in said climactic fight) was replaced with a faint high-pitched voice (which sounded more like he was yawning). This latter version was seen in the public domain. Both versions had the exact same dubbing done for US producer K. Gordon Murray by Manuel San Fernando (intended for AIP's version).