Are DAY and NIGHT the Only Descriptions You Can Use in a Slug Line?

Any writer can tell you that traditional screenwriting is a unique form of writing. With its own rules, structure, standard format, and expectations, screenwriting can be hard to get the hang of initially. One feature unique to screenwriting is scene headings, otherwise known as slug lines. They announce the setting of a scene. Do scene headings have any other uses? Can a slug line be used for descriptions other than the standard DAY and NIGHT? Keep reading to learn all about slug lines!

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Scene Heading or Slug Line Definition

A scene heading is a short line of text in a screenplay that introduces a new setting in a scene. It includes three distinct parts within its master heading, including whether the location is inside or outside, where the scene takes place, and the time of day. This serves a couple of purposes: 1) to help the reader visualize the scene, and 2) to help someone reading a spec script get a better idea of budget based on the time of day and location of each scene. For example, it’s much more expensive to shoot at night.

Scene Heading / Slug Lines Example in Traditional Screenplay Format

This is how you format scene headings or sluglines in a movie or television script.

Script Snippet — Slugline Example

Slug lines are all uppercase letters and best when left brief. They usually operate in one of two ways, as a master heading or as a subheading.

Master Heading in a Script

A master heading is the predominant job of the slug line. This type of heading starts the scene and alerts the reader to whether it’s indoors (INT.) or outdoors (EXT.), the primary location, and the time of day. Be straightforward in your labeling of the location, don’t offer up unnecessary details. As for the time of day, you can be as specific as is relevant to the story, so feel free to use day, night, dawn, dusk, morning, afternoon, etc.

Subheading in a Screenplay

Once the master heading is established, a writer might use a subheading or secondary scene heading to alert the reader to specific details with the master scene heading without creating a separate scene. This secondary heading might note a change in location within a larger single location.

When moving to a secondary location within a master location

You’ll often see subheadings used when characters move to another room in a house. An example of this would be:

Script Snippet — Secondary Location Slugline Example

To convey the passage of time

A subheading can also show the passage of time from the previous scene if the master location remains the same. As seen here:

Script Snippet — Passage of Time Slugline Example

To draw focus to a character

Subheadings can even signal a type of shot or draw focus to a specific character within a master scene. For example:

Script Snippet — Character Focus Slugline Example

Note: regardless of what the subheading is doing, they should all receive the same formatting, written on their own line in all caps.

My example wasn’t particularly artful, so to see master headings and subheadings in action, check out the pilot script for NBC’s Hannibal. The first few pages are full of subheading examples with proper traditional screenplay format.

Now you know all about sluglines! From master headings to subheadings, they’re particularly helpful for immediately informing the reader of important information. If this is new to you, give different subheadings a try sometime! Happy writing!