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How to approve scenes on a live storyboard before rendering with Open Montage

Review takes, prompts, cost, and quality scores in Backlot before the final render starts.

  • Content
  • Intermediate
  • 30 minutes
  • From the README
  • Claude Code
  • Codex
  • Cursor
  • Gemini CLI

Who it is forA producer who needs to check every scene and spend before paying for a full render.

The problemFinding a bad visual or an overspend only after rendering wastes money and time.

The outcomeScene-by-scene approval on a contact sheet, with each provider decision and dollar spent visible before the render.

What you need first

  • Python 3.10+
  • FFmpeg installed and on the PATH
  • Node.js 18+
  • An AI coding assistant such as Claude Code, Cursor, Copilot, Windsurf, or Codex
  • Optional: API keys in .env for paid or free stock providers

Steps

  1. Start a production through your AI coding assistant.
  2. Run python -m backlot open to see the library of projects.
  3. Run python -m backlot open with your project name to open its live board.
  4. Review the contact sheet of takes, prompts, per-asset cost, and quality scores.
  5. Reply in chat to approve or request changes before the render.

Prompt for your agent

In the OpenMontage repo at <repo-path>, start a production for <topic] and open its Backlot board. Stop at the asset approval gate and report the per-asset costs. Verify that no final render has started until approval is given.

Caveat. The approval gate applies to asset generation, so the board only shows costs for providers you have configured.

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