A tragic collision of two civilizations with dramatically different world views is represented in this film produced by WGBH Boston. It screens at noon and 2 p.m., Saturday, Aug. 25; free. Reservations are required, but must be made no earlier than one week in advance; call between 9:30 a.m. and 5 p.m., Monday through Friday; or from 10 a.m. to 5 p.m., Saturday. Visit wnpa.org
for directions or more information.