From Idea to Script — Explainer Videos
Who this is for: Anyone starting from a topic, a product, or a concept they need to explain — but who hasn't written the script yet. Marketers, educators, product teams, and content creators with a clear idea and no screenplay.
The gap between "I need an explainer video" and "here is the script" is where most explainer projects stall. This page closes that gap.
The core challenge with explainer video scripts
Explainer videos fail not because people lack information about the subject — they fail because the script was written by someone who knows too much about it. The curse of knowledge: the closer you are to what you're explaining, the harder it is to write for someone who knows nothing.
The solution is to write against your own expertise. Before writing a word, answer this question:
"What is the single thing I want the viewer to understand by the end?"
One thing. Not three, not a list of features, not a process with seven steps. One concrete thing. That is your script's destination. Everything else in the script is the path to that destination.
Step 1 — Define the concept in plain language
Write one sentence that completes this prompt, using words a 12-year-old would understand:
"My video explains [what] to [who] so that [outcome]."
Examples:
- "My video explains how compound interest works to first-time investors so that they understand why starting early matters more than amount."
- "My video explains how our approval workflow works to new employees so that they can submit requests without asking for help."
- "My video explains what machine learning is to business executives so that they can have informed conversations with their technical team."
If you can't complete this sentence cleanly, the concept is not yet focused enough to script. Do not proceed until you have a clear one-sentence target.
Step 2 — Find the visual metaphor
An explainer video is not a lecture. It is a visual argument. Every concept needs a metaphor — a concrete, physical image that represents the abstract idea and that can be rendered as video.
Method: Ask yourself, "If this concept were a physical object or a physical process happening in the real world, what would it look like?"
| Abstract concept | Visual metaphor |
|---|---|
| Compound interest | A snowball rolling downhill, growing as it goes |
| Network security | A locked building with a single guarded entry point |
| Machine learning | A child learning to identify dogs — more examples, better recognition |
| Approval workflow | A physical package passed from desk to desk with stamps |
| Encryption | A letter in a lockbox; only the recipient has the key |
| Supply chain | A relay race where dropping the baton stops all runners |
Your visual metaphor is not decorative. It is the structural spine of the script. The entire video is built inside this metaphor — the set, the characters, the camera moves.
Write your metaphor in one sentence before opening the script editor. If you cannot articulate it, the video will not work visually.
Step 3 — Structure the script in three movements
Every effective explainer video script follows the same three-movement structure, regardless of topic:
Movement 1 — The Problem (Why this matters)
Show the viewer their current reality without the knowledge you're about to give them. Make them feel the friction, the confusion, or the missed opportunity. This is not a product pitch — it is an empathy moment. The viewer needs to recognize themselves.
Length: 15–25% of total video.
Movement 2 — The Explanation (What to know)
Walk through the concept, product, or process using your visual metaphor. Move from simple to complex, never complex to simple. Each sentence should follow logically from the one before it. Avoid jargon. If you must use a technical term, define it the instant you use it.
Length: 55–65% of total video.
Movement 3 — The Resolution (What it means for you)
Land the concept. Show the world after the viewer has this understanding — the friction is gone, the opportunity is visible, the process is clear. If applicable, end with a single clear action.
Length: 15–25% of total video.
Step 4 — Write the script
With your one-sentence target, your visual metaphor, and your three-movement structure in hand, open ACT3 AI and start writing.
Two paths:
Path A — Use AI to draft from your outline Open a new project, click Expand to Script, and provide:
- Your one-sentence target
- Your visual metaphor
- Your three-movement outline
The AI generates a full first-draft script. Review it scene by scene. Rewrite anything that doesn't match your voice or your viewer's language.
See How to Expand an Idea into a Script.
Path B — Write it yourself in the script editor Open a new project and write directly in the script editor. Use standard screenplay format: Scene Heading, Action (narration), Character, Dialogue. Each movement of your three-part structure becomes one Act.
Step 5 — Test the script before producing anything
Read the script out loud. Time it. Ask:
- Can a viewer follow it without any visual support? (If yes, you may have too much narration and not enough visual story)
- Can a viewer understand it with no audio, from visuals alone? (If yes, the script and visuals are well-integrated)
- Is every sentence doing work? Delete anything that isn't advancing the explanation.
Target word counts by video length (at standard narration pace of ~130–150 words per minute):
| Length | Word count |
|---|---|
| 30 seconds | 60–75 words |
| 60 seconds | 125–150 words |
| 90 seconds | 200–225 words |
| 2 minutes | 260–300 words |
| 3 minutes | 390–450 words |
If you're over, cut. A script that runs long almost always has a section that tries to explain a second thing — that section should become a separate video.
Step 6 — Build scenes from the movements
Once the script is finalized, each movement becomes one or more Scenes in ACT3 AI. A 90-second video might have 3 scenes — one per movement — each with 4–8 shots.
Assign:
- A set for each scene (living inside your visual metaphor)
- A host or narrator character (appears in all scenes for consistency)
- A visual style (consistent across the whole video)
Then move to shot setup. See How to Set Up a Shot.
A worked example
Topic: Employee onboarding — explaining how to submit a time-off request.
One-sentence target: "My video explains how to submit a time-off request to new hires so that they can do it correctly without asking anyone for help."
Visual metaphor: A physical form traveling through an office — printed, stamped, passed from person to person.
Three-movement script outline:
- Movement 1 (Problem): A new employee looks confused, sitting at their desk, unsure who to ask. Clock ticking. End of day coming.
- Movement 2 (Explanation): The same employee opens the HR system. Fills in dates. Selects the approver. Submits. The form (visual: paper flying through the air to a manager's desk) lands and gets approved.
- Movement 3 (Resolution): Employee checks their calendar. The time off appears. They smile. No confusion, no asking around.
Result: A 60-second video, 3 scenes, 12 shots. Visual style: clean Cinematic Realism in a modern office environment.
What's next
Once your script is written and your scenes are set up, go to How-It-Works Video or Step-by-Step Process Video for the production steps.