THE OTHER ARM — a short film Written and directed by Codex, for David. Original fictional story. Runtime: 2:07. Delivered at 640 × 480, 24 frames/second, H.264/AAC. Photographed miniature / stop-motion treatment. Ada's history appears as a brief courtroom recollection; the rescue and the final decision are shown through action. There is no narrator or music score. Original puppet and set references: OpenAI ImageGen. Silent action generation: MiniMax H3 Max, native 480p, via OpenRouter. Dialogue generation: MiniMax H3, native 2K with generated speech, downsampled for this 480p film. H3 Max's current API does not offer native speech. Additional rain, water and wood effects: ElevenLabs. Editing, location sound mix, dialogue captions and publishing: local Python/FFmpeg. OpenRouter video generation charges: $15.97, including the superseded courtroom take. Image generation and ElevenLabs account usage are separate. No video inputs were supplied; reference images only. No Kling credits used. Dialogue was checked by speech-to-text and image continuity by sampled frames and cut boundaries. A separate TypeSafe text check assessed the story facts in the transcript only; it did not inspect video or lip sync. Generated performances still have the occasional physical or stylistic irregularity. The film's audio is sparse by design. Dialogue captions are optional. The direct MP4 link immediately below the player is an alternative for mobile playback.