The Aztec Mummy

The Aztec Mummy 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. The plot centers on a group of scientists who uncover a secret Aztec tomb through past-life regression, only to awaken an ancient warrior who has been cursed to guard the tomb and its hidden treasures. It is the first of a trilogy featuring the titular character, all filmed back-to-back in order to increase potential profit.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.