The Aztec Mummy (Spanish: La Momia Azteca) is a 1957 Mexican adventure horror film produced by Guillermo Calderon from his own story idea, scripted by Alfredo Salazar, and directed by Rafael Portillo.

Dr. Eduardo Almada, a scientist with controversial views on hypnosis and past lives, presents his theories before a group of neuropsychiatrists and is met with extreme skepticism.

Popoca, for his "corruption" of the virginal Xochitl, is buried alive and cursed to spend eternity guarding two sacred relics entombed with him, a golden breastplate and armband which serve as keys to a vast hidden treasure.

Arriving back in Mexico City, Almada presents his discovery to the group of scientists who further uncover a series of hieroglyphics etched into the breastplate telling of a vast treasure that can be unlocked using the armband which reveals its location.

The henchman's assault on the group is cut short by the arrival of Popoca, who slaughters the men before retrieving the breastplate and abducting Flor, whom he recognizes as the reincarnation of Xochitl.

Breaking from the hold the crucifix has over him, Popoca lunges towards them, but seemingly perishes as Almada's friend Dr. Sepúlveda sacrifices himself by igniting nearby dynamite, collapsing the entire tomb onto both of them.

Wishing to distance himself from the genre, and viewing the financial success of Universal Pictures' monster movies, Salazar decided to make his next project a horror film.

[10] Some commentators have noted the design of the title character Popoca closely resembles that of the Mummies of Guanajuato,[9] a number of naturally mummified bodies that had become a popular tourist attraction since the early 1900s.

Special features included a still gallery of promotional artwork and still photographs of the entire series, in addition to an eight-page booklet with an essay on the trilogy by David Wilt.

[17] David Maine of entertainment website Popmatters gave the film a mixed review, commending the cinematography of the temple sequences and "lively" soundtrack.

[21] Unlike its predecessor, the sequel would incorporate the increasingly popular Luchador film genre into its storyline, featuring the Mexican wrestler Crox Alvarado as the masked superhero known as El Ángel.

The resulting version, cut down to 77 minutes as opposed to the original's 80-minute runtime, was released as a double-feature alongside a similarly "Americanized" foreign film Creature of the Walking Dead.