The Mountain of the Cannibal God (1978)

a.k.a. "La montagna del dio cannibale" (original title) / "Slave of the Cannibal God"  USA (censored version)

Susan Stevenson and her brother Arthur get off a plane in Papua New Guinea, looking for her missing husband. They team up with, Dr. Edward Foster. The three head into the jungle, get in more than a few fights amongst themselves, and view lots of gratuitous animal cruelty, notable an iguana getting eviscerated. 

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I Spit on Your Grave (1978)

An aspiring writer is repeatedly gang-raped, humiliated, and left for dead by four men whom she systematically hunts down to seek revenge.

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