insightful video essay!
i think a useful follow-up would be a piece on editors. directors cover scenes from multiple angles and, the three people scene for instance, is shot as a wide (or even several different wides), in two-shots from various angles, and as singles. the ultimate magic happens in the editing room - i'd love to hear more about the collaboration between director and editor (think walter murch or thelma schoonmaker).
also, look at michael haneke, two time golden palm winner. he leaves you with minutes and minutes of a medium wide shot of two people talking DESPITE a completely and utterly dramatic shift in the conversation between two people, defying our expectations. while i love, love, love fincher's films, i think he actually fulfills our expectations (hence being so successful). he makes it easy - i like it a bit harder.