Google Flow Scenebuilder and Storyboard Workflow

Storyboard planning versus Scenebuilder

A storyboard describes intended shots before generation. Scenebuilder is Flow’s current tool for arranging generated clips into a sequence. Keep the planning brief and the assembled scene conceptually separate.

Plan the shot list

Use a simple table before generating:

One shot per generation is easier to evaluate than asking for a complete edited film in one prompt. Give every shot a purpose before generating it, then keep only the version that serves that purpose.

Build the project

1. Create one project

   Keep all assets, uploads, characters and scenes for the sequence together.

2. Create reusable references

   Save useful images and frames, and create a reusable Character when the same person must appear across shots.

3. Generate shot candidates

   Use consistent identity, environment and lighting language across the sequence.

4. Save selected versions

   Use History to retain the exact version intended for the sequence.

5. Extend eligible clips

   For a Veo-generated clip that ends too early, choose Extend and describe only how the existing action should continue.

6. Add clips one by one

   Hover over each selected clip, choose More and add it to the scene.

7. Reorder, trim and preview

   Drag clips into order, trim their edges and preview the sequence.

8. Download the scene

   Export the assembled scene as one file when it is ready for a downstream editor or upload.

Extend a clip before assembly

Google currently limits Extend to Veo-generated videos. Open the selected clip, choose Extend, then describe the next simple action while repeating essential continuity constraints.

An extended clip cannot use other edit modes such as insert, remove or camera controls. Decide whether extension or another edit is more important before building the final version.

Continue the same walking action for one more shot beat.
Maintain camera direction, pace, blue-hour lighting, wardrobe,
character identity and the station layout. Introduce no new subject.

Save a frame for the next shot

Pause a useful video frame and choose Save frame. The saved image can become a start frame, end frame or Ingredient for a later generation. This creates a stronger visual handoff between adjacent shots than trying to recreate the last composition from text alone.

Organize assets with Collections

Collections work like folders and can contain nested collections. Use them for references, selects, alternates and rejected material. Flow Agent can also rename selected files or group them into a Collection.

Preserve continuity

Repeat only the continuity information that must survive:

• Saved Character, Ingredient or product reference.

• Wardrobe and key object details.

• Time of day and light direction.

• Screen direction.

• Lens or camera language.

• Environment features visible across the cut.

Avoid adding new style adjectives to every shot unless the change is intentional. If a face, wardrobe or voice changes, stabilize the Character workflow before generating more clips.

Reorder, trim and preview

Scenebuilder supports a focused assembly pass:

1. Drag clips into narrative order.

2. Trim unwanted frames from the beginning or end of each clip.

3. Preview the complete sequence and check action, screen direction and pacing at every cut.

4. Return to the project when a shot needs regeneration; Scenebuilder is not the place for layered audio, effects or detailed color work.

Keep a downstream editor in the workflow when the sequence needs music, multiple audio tracks, titles, transitions or detailed finishing.

Download and YouTube limits

Flow currently supports direct YouTube publishing for individual eligible clips. Google says a full Scenebuilder sequence must first be downloaded as a single file and then uploaded through YouTube Studio.

Common storyboard mistakes

• Generating before defining the job of each shot.

• Changing aspect ratio or visual references mid-sequence.

• Keeping no record of the selected prompt and model.

• Extending a clip after planning to use another incompatible edit mode.

• Adding every generated variation instead of only the approved version.

• Treating Scenebuilder as a full multi-track post-production editor.

• Deleting a shared asset before confirming how it is used elsewhere.

If the Add to Scene or Extend control is missing, confirm that the asset is a supported video, check the active model and account availability, and review Google’s current feature documentation before regenerating the clip.