Mountain of the Cannibal God (aka Slave of the Cannibal God)

"When her anthropologist husband disappears in New Guinea, Susan Stevenson (Ursula Andress of DR. NO) convinces her colleague Dr. Edward Foster (Stacy Keach of PRISON BREAK) to lead her into the dark heart of the deadly jungle. But while exploring the forbidden mountain of Ra-Rami, the expedition is attacked and captured by a tribe of primitive natives. Even if they can escape the barbaric tortures of these flesh-eating savages, can Susan survive the depraved lust of their Cannibal God?