Old Chatham Quaker Meeting will screen “The Singing Revolution” with a potluck at 6 p.m., in the Old Chatham Quaker Meetinghouse, across from Pitt Hall Road and Powell House. "The Singing Revolution" shows how, between 1987 and 1991, hundreds of thousands of Estonians gathered publicly to sing forbidden patriotic songs and share protest speeches, risking their lives to proclaim their desire for independence.