In the early 70's and 80's the Philippines were a hot bed of movie making magic. Despite an incredibly oppressive regime, the international filmmaking industry took advantage of their cheap labor, exotic locales, and total lack of rules. An "anything goes" atmosphere that brought about some of the best exploitation films of the era. Monster movies, jungle prison movies, blaxploitation and kung fu hybrids saw the light of day in a political climate that was repressive at best. A documentary about this chapter in exploitation cinema history, Machete Maidens Unleashed, is coming out soon by the same people who brought us the expose of the Ozploitation genre, Not Quite Hollywood. If you haven't seen it, it's fucking awesome. You can grab the torrent here.
Here's the trailer for the up-coming doc. Film Buf material for sure.