I would disagree with Manfred about composition not being part of motion picture work

If we accept that the positioning of the subject in frame is composition it is a vital aspect as to how the scenes will cut together and I write from 26years as an editor without wishing to contradict Manfred's other points. As an editor I rate directional continuity as a most desirable aspect for the flow of the narrative ... frequently ignored unfortunately by TV as opposed to the crafted single-camera production.
I might be tempted to suggest that composition appears to be ignored or unknown in many stills ... but perhaps I should not
As for flashing giving the 'old fashioned detail in the shadows' I simply do not know and anyway am suspicious of people introducing films on TV but I give credit to the Lighting Cameraman who carefully lights the scene with enough light to let us see into the shadows without it being dreadfully obvious.