_**So bad it’s… bad**_ A scientist and David Innes (Peter Cushing and Doug McClure) use the former’s awesome drill vehicle, the “Iron Mole,” to journey to the core of the planet where they discover the inner-world of Pellucidar. This prehistoric realm is run by giant telepathic flying reptiles, called Mahars, who are served by the ape-like Sagoth and enslave the primitive humans, including Dia (Caroline Munro) and Ra (Cy Grant). “At the Earth’s Core” (1976) was an Amicus production, a company that ended their low-budget output with three films based on Edgar Rice Burroughs’ books, all st...