Pink Films

Pink Films (also know as Pinku eiga or Pink eig) is a style of film from Japan that first appeared in the early 60's. These soft-porn films were first produced by small independent filmmakers for very little cash but drew in an audience and earned millions. Later the bigger studios started producing them using a somewhat larger budget and  made some quit stylish movies. Even though they still produced Pink Films in Japan the current one's aren't the same. These usually feature a popular AV Idol running around naked without much of a plot to the story and shot directly on video . The best were from the 60's and 70's like the Female Prisoner 701 and Lady Snowblood series. If you would like to learn more about them Wikipedia has a complete history of the genre here.