From the movie balcony setting of his award-winning TV show, to his desk at the Chicago Sun-Times, Roger Ebert enjoys the distinction of being America’s most widely respected film critic. Highly opinionated and always with the last word, Ebert has carved out a niche for the modern critic, and in the process created a cultural shorthand with his “two-thumbs up” seal-of-approval.

Sitting next to him every week for almost 30 years, rival film critic Gene Siskel provided Ebert with a worthy intellectual sparring partner–although often in disagreement, the two friends shared a mutual respect both on and off camera, and together they used their powerful forum to champion the underdogs of cinema.

In the first ever documentary look into his life, Ebert himself reflects on a diverse career in the movies, highlighting his screenwriting credit on the cult classic Beyond the Valley of the Dolls, and his yearly Overlooked Film Festival for movies deserving a second-chance in the theaters. Film luminaries such as Quentin Tarantino, Billy Bob Thorton, and Miramax president Harvey Weinstein all weigh in with praises and stories about a man who has become an indispensable figure in the world of modern movies.