The Hellenic Society for the Protection of the Environment and Cultural Heritage has prepared a film fest of ecological interest. The four-day Third Panorama of Ecological Films started yesterday and features films from India, Syria, Germany, Turkey, Georgia, Latvia, USA, Mexico, Belgium, Austria, Russia, Chile, China and Greece. Despite the festival’s ecological title, the films have varied subjects and are not purely ecological. Moreover, one of the society’s main aims is to build interest in the historical, artistic and architectural heritage, as well as highlight the importance of the country’s ecological balance and the landscape’s aesthetic value. The festival started yesterday with a joint German, Turkish and Syrian production about the urgent problem of the lack of water in the Middle East and Nathaniel Kahn’s moving film «My Architect.» Tonight’s program features two previously unreleased episodes of Angelos Kovotsos and Panos Kekas’s documentary series «The Houses of the Sun» at 6.45 p.m. If you are interested in the 21st century construction fever which has overtaken China, don’t miss the documentary «The Cement Revolution» at 7.20 p.m. Tomorrow will be a Greek day, with Lydia Karra’s «Seven Wounds of Heaven» at 7.20 p.m., Philippos Koutsaftis’s «Mourning Rock» at 8.10 p.m. and Dimos Avdeliodis’s «The Tree We Wounded» at 10 p.m. Saturday’s program is also very interesting and includes Ilias Dimitriou’s «Foreign Athens,» a quick but penetrating portrait of the Greek capital, at 8.30 p.m. Director Lydia Karra is the artistic director of the festival’s program. Admission costs 5 euros on weekdays and 8 euros on Saturday. Hellenic Society for the Protection of the Environment and Cultural Heritage, 28 Tripodon, Plaka, tel 210.322.5245.