Or like when someone's about the strike a blow on a protagonist, and the fist is raised, and hovers there a moment to be seen by the camera? What's that about?
I somehow doubt that anyone anywhere has ever had a fight as fluid (and lengthy) as any of those undertaken by Jason Bourne or by countless hong kong kung fu people, but for whatever partisan reason floating around in my head, I believe that the stylisation of movement one can produce with a camera and actor (or more likely, a camera, an actor, and months later an editor) working in concert is... better. And not so often effectively achieved. Since it seems the really fine line of perfectly captured form is to be found only in between easily achieved crap realism and and slightly less easily achieved crap stylisation.
My father's favourite observation about movies is that all fires crackle. In real life fires don't crackle. But some time in the distant past of movie making, some foley artist needed to make a camp fire come to filmic life so they crumbled paper into the mike and now all filmed fires crackle.