At The Earths Core

At the Earth's Core is a 1976 British-American fantasy-science fiction film produced by Britain's Amicus Productions.

The film was directed by Kevin Connor and stars Doug McClure, Peter Cushing and Caroline Munro. It was filmed in Technicolor, and is based on the 1914 fantasy novel At the Earth's Core by Edgar Rice Burroughs, the first book of his Pellucidar series, in token of which the film is also known as Edgar Rice Burroughs' At the Earth's Core. The original music score was composed by Mike Vickers.

Dr. Abner Perry (Peter Cushing), a British Victorian scientist, and his US financier David Innes (Doug McClure) make a test run of their Iron Mole drilling machine in a Welsh mountain, but end up in a strange underground labyrinth ruled by a species of giant telepathic flying reptiles, the Mahars (Pterodactyls with parrot-like beaks), and full of prehistoric beasts and cavemen.

They are captured by the Mahars, who keep primitive humans as their slaves through mind control. David falls for the beautiful slave girl Princess Dia (Caroline Munro) but when she is chosen as a sacrificial victim in the Mahar city, David and Perry must rally the surviving human slaves to rebel and not only save her but also win their freedom.