Overview: Japanese movie in 1986 to 1990

Nikkatsu withdrew from movie production business in 1988.

In this period, homeownership rate of video player/recorder increased rapidly in Japan. The fans of porn movies naturally preferred to watching adult video software (hardcore) privately at home to watching porn movies (softcore) in a movie theater, which made Nikkatsu roman porn movies less profitable.

Thus, in 1988, Nikkatsu stopped producing porn movies and changed its program to non-porn double feature one. This challenge was a disastrous failure. In the same year, Nikkatsu declared to stop movie production.

As a result, the total number of Japanese movies had decreased to 240 in 1990 from 310 in 1986.

In 1990, 2/3 of Japanese movies were cheap porn movies, which were produced under far more severe conditions than Nikkatsu roman porn movies and whose quality was, in most cases, out of the question.
Accordingly, it can be said that, around 1990, the Top_10_movies were selected from among 100 or less movies. It was quite natural that the quality of the top 10 out of 100 movies in this period is far inferior to the top 10 out of 500 around 1960.