Alfonso Cuaron’s Roma is a stunner. It is a singular film and an instant classic. In coordination with the film’s physical-media release, Netflix debuted one of the bonus features, Road to Roma (Camino a Roma), a 72-minute making-of documentary featuring extensive interviews with Cuaron, it’s a deep and insightful examination of an artist chasing his vision. He needed to film a sequence on a street corner that no longer resembles 1970 Mexico City, so he rebuilt the entire city block, worn-down curbs and all. As he’d re-envision a scene and look at the physical set, more memories would flood back, and he’d add those details. He confesses to the surrealistic experience of navigating a home and urban environment exactly like that of his adolescence, hints at the abstruse feeling of replicating the exact moment when his father abandoned his family. But he made Roma for Netflix, which not only has deep coffers, but apparently also has a deep commitment to the art of filmmaking. It doesn’t have the director-against-the-world narrative of great making documentaries such as Burden of Dreams or Hearts of Darkness: A Filmmaker’s Apocalypse (about Coppola’s Apocalypse Now), but it does depict a gifted filmmaker with a similarly uncompromising vision. It’s more along the lines of The Director, which offers fascinating insights into the production. There’s little drama to the documentary, but great films don’t need a tumultuous story behind. It’s an extraordinary supplement to a great, great film, and most importantly, it speaks for and about the film while still allowing it to speak for itself.