脚本執筆は制約の下でのストーリーテリングです。各ページはスクリーンタイム1分に相当し、すべてのシーンがその場所を勝ち取らなければなりません。これらのプロンプトは、スクリプトの構成、映画的な台詞の作成、ストーリーのビジュアル思考を手助けします。ChatGPT、Gemini、Claudeでテスト済みなので、最も映画制作者のように考えるモデルがわかります。
| やりたいこと | 最適な用途 |
|---|---|
| 脚本のログラインを作成する | ChatGPT |
| 脚本のシーンを分解し分析する | Gemini |
| キャラクターの変化の軌跡を設計する | Claude |
| 台詞をより鋭く印象的にする | Claude |
| 脚本のビートシートを構築する | Gemini |
| 脚本のフォーマットを修正する | ChatGPT |
プロンプト
脚本のログラインを作成する
Help me write a logline for my [film / TV pilot / short film / web series]. Genre: [comedy / drama / thriller / sci-fi / horror / etc.] Premise: [describe your story in 2-3 sentences] Main character: [who they are and what makes them interesting] Central conflict: [what stands in their way] Stakes: [what happens if they fail] Generate: 1. 5 logline versions using different structural approaches 2. For each: identify the irony, conflict, and hook 3. Rank them from strongest to weakest with reasoning 4. A 'comparison' logline from a produced film with a similar concept 5. A pitch paragraph that expands the best logline into 3-4 sentences 6. The 'elevator test': can you say it in one breath? If not, shorten it
最適な用途: CHATGPT
ChatGPTは最も簡潔でフックのあるログラインを作成し、業界標準のフォーマットを理解しています。
テスト済み Feb 15, 2026
プロのコツ
ログラインは25語以内を目標にしましょう。長いログラインはストーリーが焦点を欠いている証拠です。AIに毎回短縮させることで核心が明確になります。
脚本のシーンを分解し分析する
Help me break down and write this scene for my screenplay. Scene number: [where it falls in the script] Location: [INT./EXT. — where and when] Characters present: [who is in the scene and their emotional state] Scene purpose: [what this scene must accomplish for the story] Previous scene: [what just happened] Next scene: [what comes after] Break down the scene: 1. The scene objective: what changes from beginning to end 2. Character goals: what each character wants in THIS scene (not the overall story) 3. The opening image: what the audience sees first and why it matters 4. Full scene in proper screenplay format with action lines and dialogue 5. The 'turn': the moment in the scene where the dynamic shifts 6. Subtext notes: what's really happening beneath the dialogue
最適な用途: GEMINI
Geminiは最も構造的なシーン分析を提供し、各シーンの目的、転換点、感情の軌跡を明確に特定します。
テスト済み Feb 15, 2026
プロのコツ
各シーンが「なぜこのシーンが必要か？」という質問に答えられるか確認しましょう。答えられないシーンはカットの候補です。
キャラクターの変化の軌跡を設計する
Help me map the character arc for [character name] across my [film / TV season / series]. Who they are at the start: [personality, beliefs, situation] The inciting incident that disrupts them: [what forces change] Their fatal flaw or 'lie they believe': [the internal obstacle] The truth they must learn: [the lesson of the story] Who they are at the end: [how they've changed] Map the arc: 1. Act 1: How we establish who they are and what they want (3-4 key scenes) 2. Act 2A: Early challenges that test their old approach (3-4 scenes) 3. Midpoint: The moment that forces them to question their beliefs 4. Act 2B: The consequences of their flaw catching up to them (3-4 scenes) 5. Act 3: The crisis, choice, and transformation (or failure to transform) 6. A scene-by-scene emotional arc chart: what the audience should feel at each beat
最適な用途: CLAUDE
Claudeはキャラクターの内面的変化を最も繊細に設計し、変化の動機と段階が心理的に説得力があります。
テスト済み Feb 15, 2026
プロのコツ
キャラクターアークの最も重要なポイントは「変化を拒否する瞬間」です。簡単に変われるキャラクターは面白くありません。抵抗があるからこそ変化に意味が生まれます。
台詞をより鋭く印象的にする
Help me punch up the dialogue in this scene: [Paste the scene with dialogue] Genre: [comedy / drama / thriller / etc.] Characters: [brief description of who's talking] Problem: [what feels off about the current dialogue] Punch it up: 1. Cut every line that doesn't reveal character or advance plot 2. Replace on-the-nose dialogue with subtext versions 3. Give each character a distinct speech pattern (length, vocabulary, rhythm) 4. Add one moment of humor, deflection, or surprise 5. Trim every line to its shortest possible version 6. Rewrite the scene with before/after comparison
最適な用途: CLAUDE
ChatGPTは台詞のブラッシュアップに最も実用的で、冗長な部分をカットし、インパクトのある表現に置き換えます。
テスト済み Feb 15, 2026
プロのコツ
台詞の中で最も弱い部分はしばしば最初の2〜3語です。「えーと」「まあ」などの埋め言葉をカットするだけで台詞がシャープになります。
脚本のビートシートを構築する
Build a beat sheet for my [feature film / TV pilot / short film]. Genre: [type] Logline: [one-sentence premise] Main character: [protagonist description] Antagonist/obstacle: [what opposes the protagonist] Theme: [what the story is really about] Target length: [90 / 110 / 120 minutes or 30 / 60 minutes for TV] Create a beat sheet: 1. Opening image: the visual that sets the tone 2. Setup: establishing the world and character in their 'before' state 3. Catalyst: the event that launches the story 4. Debate: the character's hesitation before committing 5. Break into Act 2: the moment they cross the threshold 6. B-story: the subplot (usually the relationship that teaches the theme) 7. Midpoint: false victory or false defeat that raises the stakes 8. All is lost: the lowest point for the protagonist 9. Break into Act 3: how they find a new approach 10. Finale: the climactic confrontation and resolution 11. Final image: the visual that shows how the world has changed 12. Page count targets for each beat based on target length
最適な用途: GEMINI
Geminiは最も正確なビートシートを構築し、Save the Cat!やHero's Journeyなどのフレームワークに忠実です。
テスト済み Feb 15, 2026
プロのコツ
ビートシートはガイドラインであってルールではありません。すべてのビートに執着するより、ストーリーに必要なビートを選びましょう。
脚本のフォーマットを修正する
Help me format this content into proper screenplay format: [Paste prose scene, treatment, or rough draft] Script type: [feature film / TV pilot / short film / stage play] Software I'm using: [Final Draft / WriterSolo / Highland / Google Docs / other] Convert and teach: 1. The properly formatted version with correct sluglines, action, dialogue, and transitions 2. Every formatting rule applied, with a note explaining why each matters 3. Common formatting mistakes in the original and how to fix them 4. Parenthetical usage: when to use them and when they're unnecessary 5. Action line best practices: present tense, brevity, visual writing 6. A formatting cheat sheet I can reference for future scenes
最適な用途: CHATGPT
ChatGPTは業界標準の脚本フォーマットを最も正確に理解し、正しいフォーマットへの修正が詳細です。
テスト済み Feb 15, 2026
プロのコツ
フォーマットは脚本の第一印象です。フォーマットが間違っていると、内容を読む前に不プロフェッショナルだと判断されます。
実際のテストに基づいています — 推測ではありません。 テスト方法を見る
Gemini
Best for scene breakdowns and beat sheets. Creates visually oriented scenes and structurally sound outlines with precise page targets. Less effective at writing emotionally nuanced dialogue.
結果元： Gemini 2.0 Flash · テスト済み Feb 15, 2026ChatGPT
Best for loglines and screenplay formatting. Generates the most commercially viable pitches and consistently correct industry formatting. Can default to formulaic structure if not pushed.
結果元： GPT-4o · テスト済み Feb 15, 2026Claude
Best for character arcs and dialogue punch-ups. Creates psychologically rich transformations and writes the sharpest, most subtext-laden dialogue. Sometimes writes scenes that are too long for their page count.
結果元： Claude 3.5 Sonnet · テスト済み Feb 15, 2026Grok
Best for writing sharp, witty dialogue and comedy scripts with natural banter and comedic timing. Creates memorable one-liners and satirical scenes that feel fresh rather than formulaic. Less focused on proper screenplay formatting standards and traditional three-act structural discipline.
結果元： Grok 2 · テスト済み Feb 15, 2026Show, don't tell — literally. In screenwriting, this isn't a metaphor. You cannot write 'she feels sad.' You must write 'she turns away and presses her fist against the window.' The camera can only capture what's visible and audible. AI defaults to novelistic description — always convert to visual action.
Every scene must turn. If the emotional state of your characters is the same at the end of a scene as the beginning, the scene has no purpose. Something must change in every scene: a relationship, a power dynamic, a piece of information, an emotion.
Your first ten pages decide your script's fate. Industry readers decide whether to keep reading by page 10. Your protagonist, tone, and central conflict must all be established by then. If your script 'gets good around page 30,' it never gets read to page 30.