There was a good twitter thread today about supposed screenwriting rules. Mazin, McQuarrie, Mangold, Rian J and a few others got in there to reiterate that these supposed rules don’t matter. Here’s my screenplay for Solitary Man. You will see I break all the rules on the first page. Michael Douglas read it and signed on.
These rules–don’t use camera angles or moves, don’t use songs, don’t write emotions we can’t film–they don’t matter. Just be engaging. Just carry us through the story. Just demand our attention. Solitary Man, Blue pages
Brian Koppelman 
I agree. Tell the story slickly and engagingly. Actors an directors want a quick slick engaging emotional read. Never write a boring script. Write it like this one, for example. Good script – SM. Smooth fun cool exciting read. Breaking the rules. Enjoyed it.