Duration on almost every video row is a short menu. A 30-second story is several beats — an open, a proof, a pack, a CTA — and stuffing those into one prompt is how the model compresses them into a muddle or a jump. The beat list is the plan that prevents that: one line per shot, one camera, one duration the catalog actually sells. Storyboard is the wider name for a planned sequence. The beat list is that plan with a clock, written before you spend a 30-second pass.
Multi-scene generation is the execute step. Each beat becomes its own job, then a stitch. First-last-frame is a two-cell version. Video extend continues one clip past its last frame and is not N beats. A hook pack is several opens against one body; it is a pack of beat one, not a substitute for listing beats two through five.
Write the list so a stranger could shoot it. 'Cinematic product film, 30s' is not a beat. '0–3s: pack on table, claim burned in. 3–8s: pour. 8–15s: hands, label readable. 15–24s: result. 24–30s: CTA card' is a beat list. Then pick a model per line. Assembly is usually the better-looking route because a cut hides discontinuity that a single long generate has to survive.
In practice
- One beat, one generate. If the camera has to sit somewhere else, it is a new line.
- Match each line to a duration the row sells. A seven-second beat on a 5-or-10 menu is a rewrite, not a trim.
- Do not ask one 30-second generate to play five boarded shots.
The mistake to avoid
Treating the 30-second slider as a story length. The slider is one clip. The beat list is how many clips the story needs.
Where you will run into it
- Trim a Video — Keep the part you want. Drop the rest.
- Merge Multiple Videos Into One — Several clips in. One finished video out.
- AI Movie Maker — One prompt. A finished short film.
- Story to Video AI — Write it. Watch it. In minutes.
Related terms
Storyboard
A storyboard is a planned sequence of shots — stills, prompts, or both — that a later generate follows, rather than one prompt asked to carry the whole film.
Duration
Duration meaning: how long a generated clip runs, chosen before generation from the lengths the model supports, not trimmed after.
Multi-scene generation
Multi-scene generation is building a video as separately generated shots that are then stitched, rather than asking one clip to carry the whole story.
Text-to-video
Text-to-video is generation from a written prompt alone — you describe a shot, the model invents every frame of it, and no image or footage goes in.
Image-to-video
Image-to-video animates a still you supply: the picture becomes the opening frame, and the prompt describes only what happens next.
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