Pornorama
A free-wheeling chronicle of the Munich sex film industry in the 1970s.
Starring Benno Fürmann, Tom Schilling, Karoline Herfurth, Elke Winkens, Michael Gwisdek, Valentina Lodovini, Dieter Landuris, Leonie Brill, Martin Glade, Christian Näthe
It's a comedy movie, and has a rating of 5.3 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Singapore.