Released in 1972, the year the U.S. returned Okinawa to the Japanese, this drama by Nagisa Oshima (In the Realm of the Senses) involves a family vacationing on the island who uncover family secrets dating back to the end of World War II. For a filmmaker of Oshima’s technical sophistication, it’s something of an embarrassment, marred by uneven acting, clumsy postdubbing, and a hokey electric-keyboard score. In Japanese with subtitles. 96 min.