Watch That's Black Entertainment: Celebrating Legendary Black Comedians (1970) : Full Movie Online Free Honoring African-American films from the 1920s through the 1950s, this documentary explores comedies of the period and pays particular attention to the vaudeville numbers of Boarding House Blues (1948), starring Moms Mabley and Dusty Fletcher. A segment from the series "That's Black Entertainment," this documentary program narrated by actor Mario Van Peebles includes interviews and classic footage.