Cinematic Product Video Prompt for Keychain Style Portrait

A detailed JSON-formatted prompt designed for the Gemini AI Nano Banana 3 Pro to create a cinematic product-style video advertisement. The video features a keychain as the hero product, protected by a tiny, tough figurine bodyguard in a high-end studio setting, utilizing macro close-ups and smooth camera movements to achieve a humorous yet sleek aesthetic.

提示词

{
  "style": "cinematic product-style video",
  "environment": {
    "setting": "clean premium studio",
    "lighting": "soft directional studio lights, high contrast, glossy reflections, subtle rim light",
    "mood": "humorous yet high-end"
  },
  "subjects": [
    {
      "type": "tiny figurine",
      "role": "bodyguard",
      "actions": [
        "paces left and right",
        "crosses his arms",
        "adjusts tiny sunglasses",
        "stands protectively in front of keychain"
      ],
      "expression": "serious, tough, guarding"
    },
    {
      "type": "keychain",
      "role": "protected object",
      "details": "hero product, centered, sharp focus"
    }
  ],
  "camera": {
    "movements": [
      "smooth dolly tracking shot following the figurine",
      "macro close-up shots on sunglasses, figurine face, and keychain",
      "shallow depth of field transitions"
    ],
    "lenses": "macro lens, 85mm cinematic product lens feel"
  },
  "visuals": {
    "composition": "premium product advertisement aesthetic",
    "textures": "sharp micro-details on figurine and keychain",
    "tones": "clean neutral backdrop, polished surfaces"
  },
  "vibe": "playful bodyguard scenario but sleek and cinematic"
}