If you’re writing a short film script, chances are your main occupation is studying. You know, film school. Perhaps it is only a hobby, you want to put an idea out of the paper, shoot that bastard and exhibit to your parents at Christmas’ Eve. If you’re writing in a regular text editor, then i feel sorry for you, because your formatting is possibly wrong. Yes, are you aware that writing for movies rely on a very specific format? In the case you don’t, google “screenwriting formatting” or something similar, you’ll find plenty of options. I never wrote about formatting and this ain’t the moment, because you may download a screenwriting software to do the drill for you. Just like that.
Here’s a quick primer on using Script mode in Scrivener.