is a 2018 HBO documentary that explores the extraordinary life of Muhammad Ali through his 14 guest appearances on The Dick Cavett Show between 1968 and 1979. Directed by Robert S. Bader , the film uses recovered archival footage to highlight an unlikely, 50-year friendship between the erudite talk show host and the world's most famous boxer. Core Themes and Content Ali & Cavett: The Tale of the Tapes (2018) - IMDb