Hal Holbrook’s “Mark Twain Tonight!” is an icon of American performing arts, believed to be the longest-running one-man show in the history of theatre. After first donning Twain’s fabled white suit and walking onto stage in 1954, Mr. Holbrook performed his legendary one-man show on- and off-Broadway, in all fifty states, in twenty countries, behind the Iron Curtain, and before five U.S. Presidents. Millions have seen the Tony and Emmy Award-winning performance, and countless actors and scholars have been influenced by the work. Featuring interviews with Sean Penn, Martin Sheen, Emile Hirsch, Annie Potts, Cherry Jones, Robert Patrick, and a host of others, Holbrook/Twain: An American Odyssey is a celebration of this one-man masterpiece, an examination of the joys and struggles of an actor’s life, and a strikingly relevant ode to one of our country’s most important, provocative, and enduring writers.