I’m getting new headshots soon, and when I talked to the photographer, he said they always work with a makeup artist, because they want to use makeup to cover up any irregularities, to compensate for how the camera sees things vs. how the human eye does, to make sure each photo draws our attention to the eyes.
I think filmmaking and screenwriting work in a very similar way. We write not to emulate life. We accept that the viewer experiences life differently on screen than in reality, so we write with that in mind. And we create to make sure every frame, every scene, sequence, and dialogue exchange, points the viewers attention to the most important information, the eyes of the movie, in whatever way serves the story best, free of distractions.