Old Chatham Quaker Meeting will screen “Bidder 70," a documentary concerning the actions of Tim DeChristopher. Tim DeChristopher has been an environmentalist for most of his life. When 22,500 acres of some of the most beautiful lands in Utah were about to be sold to oil and gas developers for fossil fuel development, he disrupted the auction by posing as a bidder. Refreshments will be served and a moderated discussion will follow. For more information call 518-766-2992. For directions, www.oldchathamquakers.org.