If you think the height of documentary filmmaking comes from the brain of Ken Burns, Peck’s taut exploration of the life of one of America’s literary geniuses will come as a welcome revelation. Yes, there is archival footage mixed in with contemporary imagery, but there are no talking heads. There are no historians or professors emeritus explaining what we have or are about to see on-screen. For the most part, we simply have Baldwin himself, alternating mostly between frustration and indignation and occasionally bemusement.