PFA presents an evening of archival prints of British film classics: Anthony Asquith's A Cottage on Dartmoor, accompanied by English composer and pianist Neil Brand, considered one of the finest exponents of improvised silent film accompaniment in the world; and a program of delightful shorts by Richard Massingham, the neglected comic genius who taught 1940s Britain how to cross the road safely, sneeze into a handkerchief, and post early for Christmas.