I would say this one is a big IT DEPENDS!

(I feel like I need a big sparkly gif for it depends, cause I feel like I say it a lot.)

All you NEED to put in all caps is the characters when they first appear.  That is a mandatory thing.

For sounds, some people really want them capitalized so the sound people can find them better.  Some people don’t want them capitalized because it is distracting on the page.  I do a sort of half and half, where I will capitalize the startling sounds, the ones that are SUPER plot important.  So, for example, if they are running barefoot across a building and someone shoots out a glass window, which causes a problem for the protagonist, I would probably write “The glass SHATTERS”.  Stuff like that.  Every little sound, not so much.

For props and colors I only do so to draw direct attention to it.  Like if it is important that she DOESN’T HAVE A RING ON or something of the ilk.  Stuff like that.  I would maybe do that…once a script.  If that.  Definitely not for every prop or color.  Only if the plot absolutely swings on it being revealed a certain way.  (And really, that should be a rare thing). 

Why is format important?

What font should a script be written in?

What weight paper should a script be printed on?

When are scene numbers added to a script?

Name four screenwriting programs.

Where should your name and contact info appear on the title page?

What should appear at the very top of the script?

What should appear at the very end of the script?

What elements must appear in a scene heading (slug line)? In what order?

What do you write if you want the scene to be in the same place but at a different time?

What goes in the action descriptions?

How long should a paragraph of action description be?

What two things are CAPPED in action descriptions?

How are action sequences (e.g. fight scenes, sex scenes, chase scenes) formatted differently from regular action descriptions, and why?

What should appear in parentheticals?

How do you indicate that you want text to appear on the screen?

What is the difference between voiceover and off-screen and how do you indicate them?

What are three ways to format a telephone conversation?

Well, I just got a recommendation for you to check out the book Screenwriter’s Bible by David Trotter. I don't know much about it, but timemachineyeah said it was helpful in terms of understanding formatting. You may want to start there and see how that goes.

But I'm sure they also sell a Screenwriting for Dummies! Actually, I just checked and yes, they do. That could be very useful in understanding the basics of screenwriting format.

Let me be really honest, though: You'll never know unless you try. It's a little weird at first to write in such a raw, skeleton-like structure and it's not for everyone. I enjoy screenwriting format because I think it's a very pure and simple form of writing. Everyone does it a little bit differently, though, and you just have to start writing to find your style.