How to watch documentaries from the perspective of photographers and directors?

The shallower level is to think about how the pictures from all angles, the basic progress of the lens and the scheduling of the shooting objects are realized in the documentary;

Then you can think about why you want to shoot like this, that is, what is the reason for this arrangement, and what is reflected in one of the important shooting techniques;

Finally, think about how to design one of the scenes if you shoot it yourself.

Personally, I think the most important thing in a documentary is rhythm. The reason why a documentary can attract people is largely not the content. A script with boring content can also be very interesting. If we can grasp the rhythm of the whole documentary, the overall look and feel of the documentary will be improved a lot.