(MGM, 1945) John Ford directed this true story of a U.S. Navy squadron of PT boats who fought a rearguard action against the Japanese invasion of the Philippines in the months after Pearl Harbor. John Wayne and Robert Montgomery star as the Navy lieutenants in charge of the mission. Film historian Lou Sabini, author of “Behind the Scenes of They Were Expendable: A Pictorial History” which features a collection of candid shots taken during filming by U.S. Navy photographer Nick Scutti, will introduce the film. Starts at 7:30 p.m.  Free, at the Library of Congress Packard Campus Theater located at 19053 Mt. Pony Rd. in Culpeper, VA. No reservations required. For more information, call 202-707-9994.