One thing movies will never have is the sensation of opening up your eyes to total blackness. If any change of light at all only miniscule. But the rush with which they gape, the uncontrollable reflex they seem to have, eager to apprehend the darkness, to test if it is actually totally dark. But they can't always know--you can't--when it is all too dark, only in the shuttering up and down of your eyes can you ever be sure that they are opened or closed. In fact, done quickly enough one begins to lose track of which blackness is open and which closed, only that there is a rush switch that interlaces itself between the two that must certainly be providing actual vision on the darkness.
But if the movies ever figure out how to show that, how to convey that sensation, then they will really have something. That would really be something new in the world. And hell if I'll do anything to stand in the way of new in the world.