Introduction to the story, characters, location and time frame should usually be the start of the screenplay. Setup is an important part as the audiences have knowledge about the movie or the performance. It’s better to start with a picture rather than an unknown voice on a blank screen as that will be good to absorb the audience into the story. The image can be of anyone, either that of the actor who plays the central role, or any place like his hometown, whatever conveys the theme? Like in Harry Potter and the Chamber of Secrets, a snake is shown crawling which later gets killed by Potter in order to save himself and the students.
Almost everyone thinks they know how to write a screenplay. We’ve all heard someone watching TV saying I could write a better script than that!
The truth is that just about everyone does have a story worth telling. Unfortunately most do NOT know how to write a screenplay.
Most professional artists are very particular about their tools. The screenplay writer is no different. The key to writing is being organized. Before even writing a single word, you must have an inner road map that your characters are going to follow.
A horror movie has certain rules. If you break too many the audience will be disappointed.
This is a very short, no fluff, blueprint of how to write a horror script.