Beyond Direct Generation: A Decomposed Approach to Well-Crafted Screenwriting with LLMs

• URL: http://arxiv.org/abs/2510.23163v1
• Date: Mon, 27 Oct 2025 09:41:29 GMT
• Title: Beyond Direct Generation: A Decomposed Approach to Well-Crafted Screenwriting with LLMs
• Authors: Hang Lei, Shengyi Zong, Zhaoyan Li, Ziren Zhou, Hao Liu,
• Abstract summary: Large Language Models (LLMs) show great potential in creative writing.<n>Direct end-to-end generation approaches often fail to produce well-crafted screenplays.<n>We introduce Dual-Stage Refinement (DSR), a framework that decouples creative narrative generation from format conversion.
• Score: 6.802263659531867
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The screenplay serves as the foundation for television production, defining narrative structure, character development, and dialogue. While Large Language Models (LLMs) show great potential in creative writing, direct end-to-end generation approaches often fail to produce well-crafted screenplays. We argue this failure stems from forcing a single model to simultaneously master two disparate capabilities: creative narrative construction and rigid format adherence. The resulting outputs may mimic superficial style but lack the deep structural integrity and storytelling substance required for professional use. To enable LLMs to generate high-quality screenplays, we introduce Dual-Stage Refinement (DSR), a decomposed framework that decouples creative narrative generation from format conversion. The first stage transforms a brief outline into rich, novel-style prose. The second stage refines this narrative into a professionally formatted screenplay. This separation enables the model to specialize in one distinct capability at each stage. A key challenge in implementing DSR is the scarcity of paired outline-to-novel training data. We address this through hybrid data synthesis: reverse synthesis deconstructs existing screenplays into structured inputs, while forward synthesis leverages these inputs to generate high-quality narrative texts as training targets. Blind evaluations by professional screenwriters show that DSR achieves a 75% win rate against strong baselines like Gemini-2.5-Pro and reaches 82.7% of human-level performance. Our work demonstrates that decomposed generation architecture with tailored data synthesis effectively specializes LLMs in complex creative domains.

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