>Sachsenwald-Filme

https://www.youtube.com/watch?v=bku31x6trXA

>author researches for a book set in Nazi Germany
>finds out about Nazi filmed pornos
>may have even been used as goods for exchange

This thing caused a huge controversy because the mainstream press and intellectuals didn't like the idea of Nazis doing such stuff and they also didn't like what the author was going with his book.

So they dispute the authenticity or existence of these tapes to this day.