When Dinosaurs Ruled the Earth

When Dinosaurs Ruled the Earth (titled When Dinosaurs Ruled the World in the U.K.) is a 1970 British science fiction film from Hammer Films, written and directed by Val Guest, and starring Victoria Vetri. It was produced by Aida Young. This was the third in Hammer's "Cave Girl" series, preceded by One Million Years B.C. (1966) and Prehistoric Women (1967); it was followed by Creatures the World Forgot (1971). Plot The Cliff Tribe led by Kingsor are about to sacrifice three blonde women to their Sun God, but one of the women, Sanna, escapes and is rescued by fishermen of the Seaside Tribe, among whom is Tara, who becomes enamoured with her. Tara takes Sanna to his people, who also worship the Sun God, but without sacrifices. After building a hut for herself, she joins them at a celebration of a successful hunt, in which the men have captured a plesiosaur. The plesiosaur breaks free, but is subsequently killed and butchered. Ayak, a brunette woman who is jealous of Tara's feelings for Sanna, denounces Sanna as a witch and incites the elder women against her.