Beats
A Beat is the smallest meaningful unit of dramatic action or emotional change in a script. Every scene is made up of beats. ACT3 AI uses beats as the primary building block for structuring your story before generating video.
What Makes a Beat
A beat captures a single thing that happens — an action, a reaction, a shift in emotion, or a decision. When the dramatic situation changes, a new beat begins.
Examples:
- Detective enters the crime scene and surveys the room.
- Suspect locks eyes with the detective and flinches.
- Detective picks up the evidence bag — it is empty.
Each of those is one beat.
Beat Types
| Beat Type | Purpose | Example |
|---|---|---|
| Opening Image | Sets tone, theme, and mood at the very start | A lone astronaut drifts toward a glowing planet |
| Catalyst | Inciting incident that kicks the story into motion | The astronaut discovers a distress signal |
| Midpoint | Major turn or reveal that raises stakes | The AI companion betrays the mission |
| Climax | Emotional or action peak | The astronaut confronts the rogue AI |
| Resolution | Wraps up narrative threads | Earth receives the final transmission |
Beats in ACT3 AI
In the ACT3 AI editor, you work with beats like this:
- Paste your script into the Script Editor
- The AI suggests beat boundaries automatically, or mark them manually
- Each beat becomes an expandable card in the editor
- Inside each beat you define one or more Shots, setting up camera movement and blocking for each angle
- Each shot gets rendered into video by your chosen AI model
Beat Properties
| Property | Description |
|---|---|
| Description | Plain-language summary of the action |
| Emotion | Dominant emotional tone (tense, joyful, melancholic, etc.) |
| Location | Set or environment where the beat takes place |
| Characters | Actors present in this beat |
| Duration | Target screen time in seconds |
Creating Beats with the AI Wizard
The AI Wizard generates beats automatically from your story concept:
- Open the AI Wizard from the sidebar
- Enter your logline, genre, and tone
- The wizard generates a beat sheet for each act
- Review and adjust beats to match your vision
- Beats flow directly into scene and shot creation
You can merge beats that feel too small, split beats that feel too large, and reorder them to adjust pacing.
Editing Beats Manually
In the editor, click any beat card to open its detail panel. From there you can:
- Rewrite the description
- Change the emotional tone
- Reorder beats within the scene using drag and drop
- Link a beat to a specific set or location
- Add or remove shots
Best Practices
- Keep each beat concise — one to two sentences describing a single action or shift
- A two-minute scene typically contains four to eight beats
- Beats do not have to match script paragraphs; they map to dramatic shifts, not text blocks
- Use beats as a checklist during production to make sure nothing important is missing from your video
Story Arcs and Beat Patterns
Use the Story Arc system to visualize and plan beat patterns across the full production timeline.
ACT3 AI supports multiple narrative frameworks. Common beat patterns include:
- Three-Act Structure — the most common format for film, TV, and long-form content (see Acts)
- Hero's Journey — twelve-beat mythic structure for epic and adventure stories
- Four-Act Structure — extended format for episodic content with a stronger midpoint
- Non-Linear — beats organized by theme rather than chronology
The AI Wizard can apply any of these patterns when generating your initial beat sheet.