A.J. Hakari’s review published on Letterboxd :
One of the best film-oriented documentaries ever made. Scorsese takes you through the early history of American film (beginning in the silent era, ending right around when he himself started making movies), showing us the evolution of a director from simple storyteller to defiant "smuggler" and challenger of Hollywood idealism. For nearly four hours, you hear Scorsese speak of his admiration for cinema as a fellow craftsman and his straight-up love as a movie fan period -- and you simply can't get enough. Absolutely wonderful picture.