The owlish, circular Chicago Sun-Times critic Roger Ebert famously championed 1994’s Hoop Dreams, an early documentary by Steve James looking at the aspirations of a group of black city kids, and with Life Itself James repays the favour. Lovers of film and film criticism will find much to appreciate in the film, which uses the memoir of the same name to tell Ebert’s story, from his beginnings in print journalism to his final days at home and at hospital, scenes James captures with intimate proximity. Life Itself is a candid and moving film about how to relate to art and…