A script is almost never the work of a single person. Instead, it will go through revisions and rewrites, and ultimately will be interpreted by the producers, directors, and actors.
Keep length in mind. When in script format, each page is roughly one minute of screen time. The average length of a two-hour script is 120 pages. Dramas should be around the 2-hour mark, comedies should be shorter, around one and a half hours.
Act One: This is the set-up for the story. Introduce the world and the characters. Set the tone of the story (comedy, action, romance, etc. ). Introduce your protagonist, and begin exploring the conflict that will drive the story. Once the protagonist is set towards the objective, then Act Two begins. For dramas, Act One is typically 30 pages. For comedies, 24 pages. Act Two: This act is the main portion of the story. The protagonist will encounter obstacles on the path to the resolution of the conflict. Subplots are typically introduced in the second act. Throughout the second act, the protagonist should be showing signs of change. For dramas, Act Two is typically 60 pages. For comedies, 48 pages. Act Three: In the third act, the story reaches its resolution. The third act contains the twist of the story and ends with the final confrontation of the objective. Because the story has already been established in the second act, the third act is much faster-paced and condensed. For dramas, Act Three is typically 30 pages. For comedies, 24 pages.
Realistic dialogue is not necessarily good dialogue. Dialogue should be focused on moving the story forward and developing characters. You should not worry about trying to capture reality with dialogue, because in reality, conversations are often dull and lifeless. Read your dialogue aloud. Does it sound halting, stereotyped, or over-the-top? Do all of your characters talk the same way?
Scene Heading: This is also called a “slug line. ” It sets the stage for the reader by describing the location. The scene heading is written in all caps. First, denote whether it is an interior or exterior scene by writing “INT. ” or “EXT. ” Then, follow that with the location, then the time of day. Never end a page with a scene heading, push it down to the next page. Action: This is the descriptive text of the screenplay. Write in the present tense and an active voice. Keep the paragraphs short to hold the reader’s attention. A good paragraph size is 3-5 lines. Character Name: Before dialogue starts, the character speaking is typed out in all caps and indented 3. 5” from the left margin. The name can either be the character’s actual name, a description if the character is not named in the movie, or by occupation. If the character is speaking off screen, then “(O. S. )” is written next to the character name. If the character is narrating, “(V. O. )” for voice-over is written next to the name. Dialogue: When a character is speaking, the dialogue is indented 2. 5” from the left margin, and between 2-2. 5” from the right. The dialogue goes directly beneath the character’s name.