Ok I am back and yes that is a great idea alfie.

Now we need to answer both annmarie and alfie and you too blue. I want to answer these first and then we will redirect back to your new submission.
Annmarie, your confusion. This is simple. Filmmakers as you stated, would also include readers. These readers are the basic people who are going to give you a shot in this business. Straight out, this is your shot. That being said, these persons are looking for key elements. First of all and most certainly foremost is format. If your format is less than expected it will surely find its way to file 13.
Format is crucial. Why? Format is used from the producer and/or director down to the actor, grip, stage builder, lighting and tech., costume, makeup and on and on until the actual lowliest hand on the set deserving of a copy of this screenplay. All of them have minor changes designed to work for their individual fields but it all comes from you.....and only you....the screenplay writer. You designed this, you created all of this in your imagination, and now this entire mega production comes from your basic, properly formatted screenplay. That is how important format really is.
Alfie, your question is valid. I might have missed the final intention of this as a big screen or series or whatever. I say whatever, because the rules do not change…. .
The rules are the same and are implied in the same way. Yes in a movie one needs to build through action description and dialogue an intriguing screenplay.
This is what I write. However, if this is simply a local theatre production, think about it….. . What changes? This is what changes. You are now simply using a small set without a camera and you are driven to a seated audience that needs to see certain aspects to make it real, but basically you are still attempting the same goal.
This is the goal, folks. Whether it is local play production, or Broadway or a commercial, a mini series, a Hallmark or HBO production, or finally a big screen theatre production, one final thing stands out. What is it?
You absolutely must stick to format. Format includes rules. Many writers break the rules and there are hundreds of ideas out there that will teach you how to write the proper screenplay.
I am going to start another post because I ramble too much.

Sincerely;
Patron