I had no idea there were so many: [T]he director of “People of No Return”, a haunting documentary about 30,000 South Korean civilians abducted to North Korea during and after the war, has intentionally made his film dry to avoid political biases, and packs it instead with statistics, documents and footage from historical archives. The film, which took three years to complete, is to be screened at the New York International Film and Video Festival in May.