Mimi said:
Jesus MIMI!!!:, I have listen this rumour, something like 25 years ago, about a girl, abducted in Paraguay, during Stroessner, and brutally killed, by spear going form her anus to her mouth. The version I heard, was that the film was made by USA adivisors in the Paraguayan rainforest, and send to sell, privately into the USA, to be sold. The story ended saying that a police officer was invited by mistake. He watch and quately he reported it.
Is just what apperas described in one of the links you mention.
"The First "Snuff" Film: In 1976 the movie Snuff caused a tremendous stir when the word on the street got out that an actual film depicting the on-screen murder of an actress had been smuggled into the States from South America, and this was it. Widely-believed hype aside, the film's origin was much more mundane. Snuff was a product of Monarch Releasing Corporation and had been filmed in Argentina in 1971 as Slaughter, a film about bad girls, motorcycles and bad guys. Slaughter was so ineptly made as to be unreleasable. Five years later, the head of Monarch breathed new life into this terrible piece by splicing on five minutes of additional footage, releasing it as Snuff, and spreading the word this was an actual snuff film.
People were horrified, sickened, titillated, outraged . . . and they went to see it, shelling out the ticket pric"e without argument."