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

Douglas Osborne McClure was an American actor whose career in film and television extended from the 1950s to the 1990s. He is best known for his role as the cowboy Trampas during the entire run from 1962 to 1971 of the series The Virginian and mayor turned police chief Kyle Applegate on Out of This World. From 1961-1963, he was married to actress BarBara Luna.