In 1964, one of Lorraine Hansberry's final plays, "The Sign in Sidney Brustein's Window," debuted on Broadway, and closed days before Hansberry passed away at the age of 34. Now, the play is being revived at BAM, starring Rachel Brosnahan and Oscar Isaac, who play a married couple in 1960's Greenwich Village with progressive ideals. Brosnahan and director Anne Kauffman join us to discuss their revival of "The Sign in Sidney Brustein's Window," which runs at BAM Harvey Theater through March 24.