A beginning and an ending, with room for motion
Ordinary image-to-video generation starts from one source image. First-and-last-frame generation adds a second reference for how the shot should finish. That makes it useful when a final composition matters, such as a product settling into position or a camera arriving at a planned view.
The two images guide the model; they are not a promise of pixel-identical video frames. The model can reinterpret texture, small lettering, hands or other fine details. Review the result, especially when exact product marks or a precise match cut matter.

