Always use Courier 12-point font.
Left Margin is 1.5 inches (appx.15 spaces)
From Left Margin justified left tabs:
Character name is appx. 25 spaces
Parenthetical is appx. 21 spaces
Dialogue is appx. 15 spaces
Dialogue should not run longer than 3.5 inches.
Use an unjustified 1.0 right margin.
1.0 inch top and bottom
There are five main elements of a properly formatted script
Scene Heading/Slugline
Action
Character Name
Dialogue
Parenthetical
Sluglines or Scene Heading
Written in capitals and containing three pieces of information:
(1) Where; (2) Exactly where, and (3) when. (2) and (3) are
separated by a space or a dash, followed by another space.
(1) can be INT. (interior) or EXT. (exterior); (2) is a short
identification of the place; and (3) can be either DAY or NIGHT.
For example:
INT. AIRPORT - DAY
You can use more than one subject.
For example:
INT. AIRPORT - TICKET COUNTER - DAY
INT. AIRPORT/TICKET COUNTER - DAY
You need a new slugline each time you change the place,
and/or change the time.
Action, or Description
The screenplay’s visual elements, where we show what is taking
place on the screen. Character descriptions, what they are doing,
the places, and everything the audience will need to assimilate
visually. Don’t use capitals for sounds, props, visuals or emphasis.
But you will capitalize the name of each character the first time
you introduce them.
Character Name
In a properly formatted script the Character name is placed above
the dialogue, in caps appx. 25 spaces from the left margin; not
centered
Dialogue
This is where you place everything the character says.
Parenthetical
Do not use parantheticals under the character name to show
action. And don’t use them to tell the actor how to read the line.
Let the emotion come from your script and dialogue. Try to
avoid using them at all.
It should look like this:
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