The listless face of a 27-year-old woman tending cafeteria tables all day long, seven days a week. The incessant, violent coughs of a retired doctor who has not had a good night's sleep in 17 years.

A documentary film on Chinese who have died or incurred postwar health problems after being exposed to artillery and poison gas shells left behind in China by the Imperial Japanese Army illustrates the suffering -- and dark past that haunts the two nations -- 59 years after the war.

"The abandoned weapons issue has extremely high public interest in China, but is little known in Japan," said freelance director Tomoko Kana, who recently completed the 90-minute film "Nigai Namida no Daichi kara" ("From the Land of Bitter Tears").