This epic tribute to Dr. Martin Luther King Jr. is a riveting compilation of documentary footage of the civil rights leader, from the Montgomery bus boycott to the “I Have a Dream” speech at the Lincoln Memorial, from the dogs of Selma to the Nobel Prize and the fateful motel balcony in Memphis. Featuring narration and commentary from Sidney Poitier, James Earl Jones, Paul Newman, Joanne Woodward, Charlton Heston, Harry Belafonte, Ruby Dee, Clarence Williams III and others. DIR Sidney Lumet, Joseph L. Mankiewicz; SCR/PROD Ely Landau. U.S., 1970, b&w, 182 min, plus one 15-min intermission. NOT RATED