This documentary follows Robert Caro, the Pulitzer Prize winner, and his editor Robert Gottlieb. The duo has worked together for over 50 years and has embarked on the final project they will ever do together. Caro, 86, and Gottlieb, 91, team up one last time to finish "The Years of Lyndon Johnson." Directed by Lizzie Gottlieb. Bill Clinton and Conan O'Brien also make an appearance in this film featuring literary legends.