The Mole People

So it starts out with an archaeological team in the 50s that stumbles upon this underground civilization of a lost dynasty of Sumerians, who have apparently failed to evolve over the past 5,000 years (except into albinos). The plot becomes a but fuzzy here, but pretty much only three archaeologists survive. The albinos decide to sacrifice these strangers. One of them dies, but the other two (Dr. Bentley and Dr. Belamin) escape by shining a flashlight in the albinos and mole people's faces. Wait! Who are these mole people? They are mutant humanoid mole-type creatures that are the mistreated slaves of the albinos and resemble the sand people from Star Wars. Just like the albinos, living underground has made them highly sensitive to light. Anyways, the Sumerian priest believes that the flashlight is the sacred fire of their goddess, Ishtar. They come to believe that Bentley and Belamin are messengers of Ishtar and give Bentley a slave, a beautiful woman named Adel who is shunned by the albinos because of her tan skin. Of course, she and Bentley fall in love and he says she can come with him if they ever get out.