(Columbia, 1967). Sidney Poitier stars as Mark Thackeray, a new teacher at a run-down-school in the slums of London’s East End whose rowdy students drove their last teacher to resign. 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.