What does "EXT. NIGHT" mean in a script? Is it cloudy? Rainy? Well lit? What are camera locations? Is the scene important for the context of the movie? What are characters wearing? What are they looking at?
What do actors actually do? How do they actually behave?
Here are a few examples of script vs. screen.
Here's a well described script of Whiplash. Tell me the one hundred million things happening on screen that are not in the script: https://www.youtube.com/watch?v=kunUvYIJtHM
Or here's Joker interrogation from The Dark Night Rises. Same million different things, including actors (or the director) ignoring instructions in the script: https://www.youtube.com/watch?v=rqQdEh0hUsc
Here's A Few Good Men: https://www.youtube.com/watch?v=6hv7U7XhDdI&list=PLxtbRuSKCC...
and so on
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Edit. Here's Annie Atkins on visual design in movies, including Grand Budapest Hotel: https://www.youtube.com/watch?v=SzGvEYSzHf4. And here's a small article summarizing some of it: https://www.itsnicethat.com/articles/annie-atkins-grand-buda...
Good luck finding any of these details in any of the scripts. See minute 14:16 where she goes through the script
Edit 2: do watch The Kerning chapter at 22:35 to see what it actually takes to create something :)