I revisited a lot of Mexican films, particularly from the Golden Age of Mexican Cinema, like Buñuel’s Los Olvidados to kind of remember the texture and the sounds of Mexico City.
I revisited films that portray human experiences, the passing of life. The Apu Trilogy, 'Pather Panchali' especially, for the way it portrays childhood and family. That was very important.
— Alfonso Cuarón · Collider - Alfonso Cuarón on How Netflix Saved ‘Roma,’ Why He Shot in Black & White, and More