Having discovered an amateur cinematographer’s account of a 1939 Nazi celebration of German culture—the domestic equivalent of the sort of Russian Front footage featured in Mein Kreig—Luke Holland showed the film to some of the festival’s participants and observers and interviewed them about their reactions. As with so many interviews of well-connected Germans of a certain age, the resulting Good Morning, Mr. Hitler can be expected to be revealing and disturbing. At 8 p.m. tonight and Friday at the Hirshhorn Museum & Sculpture Garden’s Ring Auditorium, 8th & Independence Ave. SW. FREE. (202) 357-2700. (MJ)