Gwendoline (1984)

"Adventure without shame! A lost, lost civilization where no man has ever been...And for good reason!"

Plot Summary

A beautiful woman hires an intrepid adventurer to help find her father, who has disappeared in the jungle while searching for a rare and priceless butterfly. Along the way they run into cannibals, a race of Amazon warriors and all the usual attractions one would expect to find in a lost jungle.