How to Write a Book Trailer Script That Sells
Every trailer that gives you chills started as a document nobody will ever see: the script. Animation, music, and sound design all serve the script. Get the script wrong and no amount of polish saves the trailer. Get it right and even simple visuals carry weight. Here is the structure we use for every script we write, and how you can use it for yours.
The first 3 seconds decide everything
Viewers do not ease into trailers. They grant you about three seconds before the thumb moves on. So the script must open with its strongest moment: a striking line of dialogue, a shocking image, a question the viewer cannot unhear. Never open with your name, your title card, or a slow fade from black. Open with the hook, then earn the setup.
Write the hook last. Draft the whole script, then ask which single line would stop a stranger mid scroll. That line goes first.
The 3-act mini structure
A 60 second trailer is a story in miniature. Three acts, roughly timed. Once the script is set, the length question mostly answers itself.
Act 1: The setup, about 10 seconds
One or two lines that place us. Who is this about, and what is their world? Think logline, not chapter one. Something like: in a city where memories are bought and sold, one thief steals the wrong one.
Act 2: The conflict, about 30 seconds
This is the meat. Raise the stakes in escalating beats: the threat appears, the cost becomes personal, the choice narrows. Each beat is one scene in the trailer and one sentence in the script. If a beat does not raise tension, it does not belong.
Act 3: The promise, about 15 seconds
End on the question, not the answer. The trailer should close with the viewer needing to know what happens next. Title card, author name, release info. Done. The book is where answers live.
What to leave out
Scripts get better by subtraction. Cut these without mercy:
- Spoilers. If the trailer reveals the twist, there is no reason left to read.
- Subplots. The trailer follows one thread. Your book can have twelve.
- Backstory. Nobody needs the history of your world in 60 seconds. Mystery beats exposition.
- Dialogue dumps. One great line beats five good ones.
Voiceover or text cards?
Both work, and the choice shapes the trailer’s feel. A voiceover adds warmth and human presence, and it lets the visuals breathe while the story is told. It costs more and needs a good voice, because a weak read sinks the whole piece. Text cards are punchier and cheaper, and they play well on mute, which is how most social video is first encountered. Our rule of thumb: voiceover for emotional, character driven books; text cards for thrillers, horror, and anything where silence is part of the scare.
Whichever you choose, write for the ear first. Read every line out loud. If it sounds like a book blurb, rewrite it until it sounds like a movie.
The script is not a summary of your book. It is an advertisement for curiosity.
A sample 60-second outline
Here is the skeleton we start from. Flesh it out with your story’s specifics:
- 0:00 to 0:03. The hook. Your single strongest line or image.
- 0:03 to 0:12. The setup. World and protagonist in two lines.
- 0:12 to 0:40. The conflict. Three escalating beats, each one scene.
- 0:40 to 0:52. The turn. The moment everything gets worse, or impossible.
- 0:52 to 1:00. The promise. The unanswered question, then title and author.
Who should write it
You know your book better than anyone, which makes you the worst person to summarize it. Authors are too close. Everything feels essential. A scriptwriter’s real job is killing your darlings on your behalf. If you write it yourself, get distance first: finish the draft, wait a week, then cut half. Our complete book trailer package includes a custom script written around your book, because we have learned that the script is where trailers are won.
Script questions, answered
How many words fit in a 60 second book trailer?
About 130 to 150 words of voiceover at a natural pace. That is less than you think, which is why every word has to earn its place.
Should a book trailer reveal the ending?
Never. The trailer’s job is to create a question the book answers. Reveal the setup and the stakes, withhold the resolution.
Do I need a professional voiceover artist?
Not always, but a bad read will sink a good script. If your budget allows one professional element, spend it on the script or the voice before anything else.
The script is the hard part. Let us write it.
Our $600 complete package includes a custom script built around your book, then scene based animation to bring it to life. Tell us your story and we will take it from there.
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