Guild Hall will present “The Red Orchestra,” a 2003 documentary about the resistance group that fought against the Third Reich within Germany from 1933 to 1942, on Saturday at 8 p.m. Harris Yulin, an actor with an extensive stage and screen resumé and a home in Bridgehampton, will introduce the film. A discussion will follow with Stefan Roloff, the film’s director and son of one of the group’s survivors.