First and Last Frame Control

[Attach your first frame image, and the last frame image if your tool supports it, then use this prompt:]

Animate from the first image to the last image.

What changes between them: [THE ONE TRANSFORMATION, e.g. "the closed box opens and the product rises out of it" / "the empty street fills with morning light" / "the character turns from facing away to facing camera"]

**Motion**: [WHAT MOVES AND HOW, in physical terms: "the lid hinges back over about one second, then the product rises smoothly on a vertical path"]. Everything not named here holds still.

**Camera**: [STATIC / SLOW PUSH IN / SLOW PULL BACK / GENTLE ARC LEFT]. One camera move only, at a constant speed, with no cuts.

**Timing across [DURATION] seconds**: the change begins at about [X] seconds, completes by about [Y] seconds, and the final second holds on the last frame with only [SUBTLE RESIDUAL MOTION, e.g. a slight settle, drifting dust, a flag still moving].

**Hold constant**: the lighting direction and color temperature, the palette, the background, the framing, and the identity and wardrobe of anything in shot. Nothing appears that is not in either image.

**Physics**: motion is weighted and continuous, with no teleporting, no morphing between shapes, and no elements that vanish and reappear. Objects obey gravity and contact.

Audio: [SFX AND AMBIENCE, or "no audio"].

Clean frame with no text overlays, no captions, and no watermark.

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If your tool takes only a first frame, replace the last-frame reference with an explicit description of the end state:
"By the final frame: [DESCRIBE EXACTLY WHAT THE LAST FRAME SHOULD LOOK LIKE, in the same terms as the first: subject position, camera distance, light, and what has changed.]"