I don't know if there's one specific thing to point out, but Nolan's commentary for Following is great for this stuff. Nearly every shot is economical or for a purpose. The movie was heavily rehearsed so they could film as few takes as possible and thus save on 35mm film costs. He shot the opening framing scene very professionally and static so when the rest of the movie goes handheld, it seems like an artistic choice for the story within a story. The commentary's filled with stuff like that.