Tonight’s episode of Documentary Now!—“Original Cast Album: Co-op”—is inspired by the 1970 D.A. Pennebaker documentary, Original Cast Album: Company, that followed the stressful cast recording of Stephen Sondheim’s hit musical. Ahead of its premiere, we sat down with stars Taran Killam, Richard Kind, and James Urbaniak to talk about the episode, and some of their favorite documentaries.