Fact-Checking a Screenplay
A novel describes a 1950s kitchen. A screenplay orders one built. Every period detail in a script is a promise someone will have to keep with a real object, a real costume, or an actor's mouth, so the errors are cheaper to catch on the page than anywhere after it.
Why a script is less forgiving than a novel
Prose can stay vague. A screenplay cannot, because it is a set of instructions. When your action line says a detective pays for dinner with a charge card good at any restaurant in town, the prop master has to find one. Set that scene in 1949 and a reader who knows the first of those cards, Diners Club, arrived in 1950 stops reading as an audience and starts reading as a critic.
Scripts are also read faster and by more people than most manuscripts. Coverage readers skim for reasons to pass. Producers read with a budget in mind. Department heads read for what they have to source. Each of them has a different eye, and a period error gives every one of them the same reason to doubt the writer.
Who catches what
It helps to know who will find your mistake if you do not:
- The reader. The first gatekeeper catches the loud errors: a modern idiom in a 1930s mouth, a technology that had not arrived, a famous event in the wrong year.
- The departments. Production design, props, and costume research their period seriously. They find the quiet errors, often after a contract is signed, and some of them cost a rewrite.
- The actors. At the table read, a line that is wrong for the period is often wrong in the mouth. Actors hear the false note before they can name it.
- The script supervisor. In prep, the script supervisor times the script and breaks it down by story day. That breakdown exposes internal errors: a Monday that follows a Wednesday, a bandage that vanishes overnight, a letter that arrives before it was sent.
- Clearance. Productions commonly order a script clearance report, a legal review that flags real names, businesses, addresses, and phone numbers. It looks for legal risk, and it lands on the same specifics a fact-check should already have settled.
A pass-by-pass method
A single read cannot hold all of this at once. Split the work into passes, each with one question, and run them late, once the story has stopped moving.
1. The anchor pass
For every scene, write down the year, the place, the season, and the story day. Sluglines give you place and time of day; the rest you usually carry in your head, which is where it drifts. A one-line table per scene is enough. It is also the reference every later pass checks against, and it is half of what a script supervisor will build anyway.
2. The dialogue pass
Read only the dialogue, for vocabulary. Dialogue is where writers relax, and it is the one part of the script an audience hears word for word. Watch three things:
- Slang and idiom. "Multitasking" began as a 1960s computing term, so a 1940s office manager cannot praise a secretary for it, however natural it sounds. Our guide to anachronistic words and phrases shows how to date a word yourself.
- Prices spoken aloud. A number in dialogue is a claim. A first-class letter stamp in the United States cost three cents from 1932 until August 1958, so a character in 1955 who complains about a five-cent stamp is wrong in a way some viewer will know.
- Things named. Brands, songs, films, and public figures a character mentions all carry dates. Each needs to exist, and be well known enough to mention, in the year of the scene.
3. The action pass
Now read only the action lines, and list every concrete noun a department will have to supply: props, vehicles, wardrobe, signage, food, and above all technology. This is where a screenplay differs most from prose, because the camera shows the object. A character "punching in" a number is pressing buttons, and touch-tone dialing was first offered to Bell System customers in late 1963, and rotary phones stayed common for years after; before that, she dials. A car "merging onto the interstate" needs the Federal-Aid Highway Act of 1956, which authorized the Interstate system, behind it. Write the object you mean, then date it against a source.
4. The events pass
If your story runs alongside real history, check the history against your anchor table. What was on the radio that week? Was the election before or after this scene? What day of the week was that date? A perpetual calendar answers the last question in seconds, and it is one of the errors viewers most enjoy finding.
5. The real-world names pass
List every real person, business, street address, and phone number. Decide which ones the story needs to be real, and invent the rest. For phone numbers there is a safe range: in North America, 555-0100 through 555-0199 is reserved for fictional use. Doing this yourself will not replace a production's clearance report, but it means that report comes back short.
Why memory is the wrong instrument
Every one of these errors felt right to the person who wrote it. That is how it got in. The five-cent stamp and the push-button phone both read as "old enough," and rereading uses the same memory that produced them. A useful check runs against sources and gives you somewhere to point when a producer asks. Keep the source beside each fact you verify, the way you would keep a receipt. The broader method, and the five traps period errors fall into, are in our guide to avoiding anachronisms.
How Storskarvia helps
Storskarvia's fact-checker reads a script the way the departments will: it pulls out the datable claims, checks them against sources, and returns a card for each problem carrying the quote, the issue, the evidence, and a citation. Every finding first has to survive a second reviewer whose only job is to refute it, so you are not chasing false alarms. When nothing is wrong you get one quiet line saying so. The continuity editor covers the internal errors, such as the bandage that vanishes overnight, quoting the two conflicting lines side by side. Storskarvia never writes a word for you; the fix stays yours. If you are still setting up the pages, start with our screenplay format guide.
Writing a period script? Check a scene for anachronisms with the free checker: paste up to 1,500 words of screenplay or prose, tell it when and where the scene is set, and get cited findings back. No signup, and the AI writes no prose.