Near the end, as Emanuelle is rescuing Isabelle Wilkes from the cannibal tribesmen, one of the large leaves Isebelle is laying on sticks to her back as she gets up, but when the shot changes, the leaf is simply gone.
In the opening scenes at the hospital in NYC, two signs in a hallway read "Farmacy" and "Phisical Therapy".
The "monkey" smoking as it watches the two women bathe near a waterfall is not a monkey. It's a chimpanzee - and chimpanzees are African animals, not to be found in South America. Besides, how would a wild chimp/monkey know how to smoke?