Aztec Rex

In 1521, famous Spanish explorer Hernando Cortes and a small expedition arrived in Mexico, seeking fame and riches. After stumbling upon a small Aztec village, they learn that the natives regularly conduct human sacrifices to keep a big tyrannosaur from attacking. Cortes' aide, Rios, saves tribal princess Ayacoati from the dinosaur, winning over the Aztecs. Together, the Spanish and indigenous people set out to kill the carnivorous beast.