Turn a passage of your novel into a screenplay scene

What changes when a novel becomes a screenplay

A novel and a screenplay can tell the same story, but they are built for different readers. A novel is the finished product: the reader experiences the story on the page, inside the narrator's head if the author wants. A screenplay is an instruction document. Its readers are a producer deciding whether to make the film, a director planning shots, actors learning lines, and a crew working out what to build, light and record. Everything on the page has to be something those people can see, hear or put in front of a camera.

That is why converting prose to script format is two jobs, not one. The first job is mechanical: move the dialogue under the speaker's name, put a scene heading at the top, switch the narration to present tense. A tool can do most of that, and this one does. The second job is the adaptation itself: deciding what a thought looks like on screen, what to cut, and which lines still work when an actor says them out loud. That part needs you. The converter's real value is that it does the first job in seconds and then points at every place where the second job is waiting.

Use it one scene at a time. A scene is a single stretch of action in one place and one continuous period of time. If your chapter moves from a kitchen to a car, that is two scenes and two scene headings, so paste them separately.

The parts of a screenplay page

Screenplays use a small set of building blocks, each with its own position and style on the page. Once you know them, every script you read becomes easy to follow.

A scene heading, also called a slugline, has three parts. INT. means interior (inside) and EXT. means exterior (outside). Then comes the location, then a dash and the time of day. Most scripts keep time of day simple: DAY or NIGHT, with MORNING, EVENING, CONTINUOUS (the action follows straight on from the last scene) or LATER when the difference matters. The heading matters to the production more than to the story: the crew schedules the shoot by grouping scenes with the same location and time.

Screenplays are written in 12-point Courier, a font where every character takes the same width. Because of that, page count works as a stopwatch. The common rule of thumb is that one page plays as about one minute of screen time. It is an average, not a law, but producers, readers and schedulers across the industry use it as a first estimate.

How the converter reads your passage

The tool follows a fixed set of rules. Knowing them helps you read the output and fix what it misses.

Step 1: separate speech from narration

It looks for quotation marks. Text inside a pair of quotes is dialogue; everything outside is narration. Curly quotes from a word processor are straightened first so they count. If your book uses single quotes for dialogue, as many British editions do, switch them to double quotes before you paste, or the converter will treat the speech as narration.

Step 2: find who is speaking

For each paragraph that contains a quote, the converter looks for a dialogue tag next to it: "Mira said", "said Tom", "Ada whispered" and about twenty other common speech verbs. A capitalised name next to one of those verbs becomes the speaker. If the paragraph opens with a character's name ("Tom shook the water from his coat"), the converter treats that character as the speaker, because novels conventionally keep a character's action and speech in the same paragraph.

When there is no tag at all, or only "he said" or "she said", the converter falls back on the convention novelists use for back-and-forth dialogue: lines alternate between the two people talking. It picks the person who did not speak last and marks the result as inferred so you can check it. If it has no named speakers to alternate between, the line is labelled UNKNOWN.

Step 3: turn the tags into script elements

Dialogue tags disappear in a screenplay, because the character name above the speech already does their job. Some of what a tag carries is worth keeping, though. An adverb such as "quietly" becomes a parenthetical. A short participle phrase, as in "Mira said, setting down the cup", becomes the parenthetical (setting down the cup). Anything longer is turned into an action line of its own.

Step 4: rewrite narration as action

The remaining narration is split into sentences and grouped into short action paragraphs of no more than three sentences. Each sentence goes through a present-tense pass. About 170 common past-tense verbs are swapped for their present forms: "set" to "sets", "looked" to "looks", "was" to "is". Past-tense words the converter does not recognise are left alone and flagged, because guessing at verb forms produces errors that are hard to spot later.

Step 5: flag what still needs you

Each action line is checked for five problems: thoughts and feelings the camera cannot record, filter words such as saw and heard, leftover past tense, first-person narration and sentences over 30 words. Each one is listed in the right-hand column of the output table.

Worked example: the kitchen scene

The tool's default passage is a short illustrative scene written for this page. Here is what happens to it, row by row.

The passage opens with "Mira set the kettle down and looked at the door. Rain hammered the window." There is no quote, so both sentences become one action paragraph. The tense pass changes set, looked and hammered, giving "Mira sets the kettle down and looks at the door. Rain hammers the window." Nothing is flagged.

The next paragraph is the quote "You came back," followed by the tag "Mira said". The tag names Mira, so the converter writes MIRA as the character name and "You came back." as the dialogue. The comma that sat before the tag becomes a full stop, because the line now stands alone.

Then: "Tom shook the water from his coat." followed by the quote "I said I would." There is no tag, but the paragraph opens with the name Tom, so TOM becomes the speaker. The narration before the quote becomes the action line "Tom shakes the water from his coat."

The final paragraph is "She wondered if he still had the key." followed by "Sit down," she said quietly. Two things happen here. The first sentence is flagged as an interior thought: wondering has no picture. The quote has only a pronoun tag, so the converter alternates. Tom spoke last, so the line goes to Mira, marked as inferred. The adverb quietly becomes the parenthetical.

Now the page count. The converter estimates formatted lines the way a screenplay page lays them out:

1. The scene heading takes 2 lines: the heading and the blank line under it.
2. Action lines wrap at about 60 characters. The first action paragraph is 73 characters, so it takes 2 lines plus a blank: 3. The two shorter action lines take 2 lines each. Action total: 7 lines.
3. Each dialogue block takes 1 line for the name, 1 for the speech (all three speeches are under 35 characters), and a blank line: 3 lines each. Mira's last line also has a parenthetical, so it takes 4. Dialogue total: 3 + 3 + 4 = 10 lines.
4. Total: 2 + 7 + 10 = 19 lines. Divide by 55 lines a page: 0.35 pages.
5. At one minute a page, 0.35 pages is about 21 seconds of screen time.

The verdict reports one line to rewrite: the interior thought. The checklist also asks you to confirm the inferred speaker. Those two decisions are the real adaptation work in this scene, and they take a writer about a minute once the format is out of the way.

Reading the output

The result has five parts, and each answers a different question.

• The verdict tells you whether the passage converted cleanly (pass), converted with lines left to rewrite (warning), or has nothing a camera can film yet (fail).
• The metrics give the counts: dialogue blocks, action lines, estimated pages, screen time in seconds, and the number of lines that still need a human decision.
• The table is the converted scene itself, in reading order. The left column names each element, the middle column holds the text, and the right column says what still needs fixing on that row.
• The page-count breakdown shows how many formatted lines each element takes, so you can see whether dialogue or action is driving the length.
• The checklist turns the flags into tasks: confirm speakers, remove interior lines, clear filter words, fix tense, change first person to third, shorten long paragraphs.

Work through the checklist from the top. Speaker problems come first because a wrong name changes who says what, and every later fix depends on knowing whose line it is.

What the camera cannot see

The single biggest difference between prose and script is interiority, the thoughts, memories and feelings a novelist can write directly. A camera records surfaces: faces, bodies, objects, places and sound. "She wondered if he still had the key" is perfectly good prose and impossible to film as written.

There are five standard ways to handle an interior line. Pick one per line; there is no default answer.

Show it through behaviour

Ask what a person thinking this would do. Someone wondering whether he still has a key might glance at his coat pocket, or at the hook where the key used to hang. Write the action: "Mira glances at the empty hook by the door." The audience reads the thought from the glance.

Give it to dialogue

Sometimes the thought should simply be said. "Do you still have the key?" turns private doubt into conflict, because now Tom has to answer. Dialogue is the most direct option, and it changes the scene, so be sure you want the confrontation.

Use an object or detail

An object can carry a thought across several scenes. If the key matters, show it early: Mira hangs it on the hook in a flashback, or Tom turns it over in his hand before he knocks. Later, a single shot of the hook says everything.

Use voice-over

Voice-over (V.O.) is narration heard over the picture. It is a legitimate tool, and some adaptations rely on it, especially of first-person novels. It is also the easiest one to overuse. Script readers commonly treat heavy voice-over as a sign the writer has not found a visual way in. Save it for a voice that adds something the images cannot.

Cut it

Many interior lines turn out to be unnecessary on screen. An actor's face can carry hesitation without a word of explanation. If the scene still works without the thought, delete it.

The converter counts interior lines and, if more than half the action is interior and there is no dialogue at all, returns a fail verdict. That is not a judgement on the prose. It means the passage has nothing for a camera to record yet, and the scene must be rebuilt around something a person does.

Filter words and tense

Filter words are verbs that report a character noticing something instead of showing the thing: saw, heard, noticed, watched, seemed. In prose they put a thin layer between reader and event. In a script they are worse, because the audience already sees what the character sees. "She saw the door open" becomes "The door opens." The converter flags these lines rather than rewriting them, because sometimes the noticing is the point: a character watching another person is an action, not a filter.

Tense is simpler. Action in a screenplay is written in the present tense because it describes what is happening on screen now. The converter's word list covers the verbs that appear most in fiction, and anything it flags is usually a less common verb or an adjective that ends in -ed. Read each flagged word; if it describes a state ("the tired man"), leave it.

First-person novels

If your book is narrated in the first person, the action lines will come out full of I, me and my. A screenplay has no narrator, so each I needs to become the narrator's name. "I crossed the street" becomes "JESS crosses the street." Capitalise a character's name the first time they appear in the action, with a short description: "JESS (30s, paint on her boots) crosses the street."

First-person novels also tend to have the highest share of interior lines, because the narrator comments on everything. Expect to cut more, and expect to find yourself reaching for voice-over. Try the other four options first.

Dialogue needs more than reformatting

The converter moves dialogue across exactly as written. That is deliberate: it is your dialogue, and only you should change it. But novel dialogue rarely survives unchanged. Some patterns to look for after converting:

• Long speeches. On the page, a reader can take in a paragraph of speech at their own pace. On screen, an actor has to deliver it, and an audience has to listen. Speeches longer than a few lines usually get broken up with a reply or an action.
• Explaining what we can already see. "Look, it's raining" works in prose because the reader cannot see the rain. On screen, the rain is right there.
• Names in every line. Characters in novels often address each other by name so the reader can track who is speaking. On screen we can see who is talking, so most of those names can go.
• Exposition. Backstory delivered in conversation ("As you know, we've been married ten years") sounds false when spoken. Find a way to show it, or trust the audience to piece it together.

Time the scene once it is cleaned up. The dialogue runtime calculator on this site turns a word count or pasted dialogue into screen time at a speaking pace you choose.

Speakers the converter cannot find

Dialogue attribution is the part of the conversion most likely to need a check. Some patterns that defeat the rules:

• Tags with unusual verbs. "Mira breathed" or "Tom grinned" are not in the speech-verb list, because those verbs are usually actions rather than tags. The converter will treat them as narration.
• Action beats instead of tags. "Mira picked up the phone. 'Hello?'" works if the paragraph starts with Mira's name, but not if it starts with "The phone rang".
• Three or more speakers. Alternation assumes two people. In a group scene, untagged lines may be assigned to the wrong person. The table marks every inferred speaker; check each one.
• Quotes inside quotes. A character quoting someone else confuses any rule that pairs quotation marks. Rewrite the nested quote with single marks before converting.

Every line marked UNKNOWN or inferred is listed in the checklist, so nothing slips through unnoticed.

Choosing the scene heading

The converter builds the heading from your three choices: inside or outside, location and time of day. A few guidelines make headings work for everyone who reads the script.

Keep locations short and consistent. If the kitchen is MIRA'S KITCHEN in scene 3, it should not become THE KITCHEN in scene 12, because a production schedule groups scenes by exact location name. For places inside larger places, a common pattern is the larger place, a dash, then the specific room: INT. POLICE STATION - INTERVIEW ROOM - NIGHT.

Use INT./EXT. for scenes that move between inside and outside, such as a conversation in a moving car or someone stepping out onto a porch. Use CONTINUOUS when the action follows straight on from the previous scene with no time jump, typically as a character walks from one room to another.

From one scene to a whole book

Converting scene by scene is how most writers work through an adaptation, but the order matters. Converting first and selecting later wastes effort, because many scenes will not survive into the film. A workable sequence:

1. List your scenes. Make a spreadsheet with one row per scene: location, characters, what changes. The scene count estimator on this site gives a quick starting figure.
2. Decide what the film keeps. A feature film has room for a fraction of a novel's scenes. Mark each row keep, merge or cut before you convert anything.
3. Convert the kept scenes. Paste each one here, set its heading, and work through the flags.
4. Rewrite for the screen. Shorten speeches, replace interior lines, and cut description that the camera will show anyway.
5. Format and check. Move the result into screenplay software, then run a few pages at a time through the screenplay format checker to catch layout errors.

Expect the converted scene to be shorter than the prose. A paragraph of description often reduces to a single action line, because the set, the costumes and the actors' faces carry what the prose had to spell out.

Mistakes to avoid after converting

• Leaving camera directions out of fear, then overcompensating. You do not need to specify shots. Describe what we see; leave shot choice to the director. A few well-chosen directions are fine.
• Keeping every adverb as a parenthetical. Parentheticals are for lines that would be misread without them. An actor and director will find the tone of most lines from context.
• Writing action in long paragraphs. Screenplay action reads best in paragraphs of three or four lines at most. Each paragraph roughly suggests one shot or beat.
• Describing what a character feels. "She is furious" tells the actor nothing they can play. "She slams the cupboard shut" does.
• Forgetting sound. Prose often ignores sound unless it matters. A screenplay should note sounds that matter to the story: the rain on the window, the key in the lock.

What the converter does not do

It is honest to be clear about the limits. The converter does not choose scenes, merge characters, or rewrite interior lines for you; those are writing decisions. It does not handle every way a novelist can attribute dialogue. It does not produce the exact indentation of a finished screenplay, because a web page cannot reliably preserve Courier margins; the table shows the right elements in the right order, ready to paste into screenplay software. And its page count is an estimate built from average line widths, which your software will replace with an exact figure.

Everything is calculated in your browser. Nothing you paste is sent anywhere or stored.

Sources and rules this page relies on

• Christopher Riley, The Hollywood Standard (Michael Wiese Productions). A widely used reference for screenplay format, covering scene headings, action, dialogue, parentheticals and transitions.
• David Trottier, The Screenwriter's Bible (Silman-James Press). Covers spec script formatting, including present-tense action and the use of voice-over and camera directions.
• BBC Writersroom script formatting guidance (BBC). Free guidance and templates for film and television script layout, useful for writers outside the United States.
• Syd Field, Screenplay: The Foundations of Screenwriting (Delta). A standard introduction to how screenplays are structured and why they are written visually.
• The one-page-per-minute rule is an industry rule of thumb, not a published standard. The line widths used here (about 60 characters for action, 35 for dialogue) and the figure of about 55 lines a page follow from 12-point Courier at standard margins; screenplay software gives the exact count.
• Format conventions vary slightly between guides and between film and television. If you are submitting to a competition, studio or broadcaster, check its current submission rules before you send a script.