A 15-second spot is a tiny story, not a compressed brochure. I would lock one storyboard and reuse it: two-second hook, four seconds of proof with the real product on screen, then a single call to action, with captions that work even if the sound is off. Keep logos, prices and fine typography off the generated frame and add them in the edit, because that is where warping shows first. For a startup, the win is not one beautiful render. It is five hook variants from the same still, shipped in a day, then killed or scaled on click-through. If a person or place could be mistaken for real, disclose it where you run the ad. When I need to turn a brief or a product still into those vertical cuts, I use ClickPop and still check the label before any version goes live.