Write a Logline That Sells: Proven 3‑Step Formula

If you’ve ever stumbled when asked “What’s your script about?” you need a logline that grabs attention in seconds. In this guide you’ll learn how to write a logline that makes agents, producers, and readers sit up and say, “Tell me more.” Follow the exact three‑part method, use the quick checklist, and turn any vague description into a pitch‑ready hook.

Why Most Loglines Miss the Mark

Writers often treat a logline like a miniature script summary, stuffing it with subplots, clever adjectives, or the story’s ending. The result is a confusing, Wikipedia‑style paragraph that fails to convey the core conflict. Readers quickly lose interest because the line lacks a clear protagonist, goal, and obstacle—the three ingredients that make a logline compelling.

The 3‑Part Logline Formula (The Secret Sauce)

The breakthrough comes from reducing the logline to three essential elements:

1. Who – the main character (protagonist)
2. What – what they want (goal)
3. What’s stopping them – the primary obstacle

This logline formula for screenwriters forces you to cut the fluff and focus on the story’s heart.

Formula in Action

• Example 1: A shy teenage girl discovers a hidden portal that lets her relive one day forever, but each repeat brings a new danger that threatens her family.

  • Who: a shy teenage girl
  • What: wants to relive one day forever
  • Obstacle: each repeat brings new danger

• Example 2: A burnt‑out chef enters a cooking competition to save his restaurant, only to discover the judges are his estranged siblings.

  • Who: a burnt‑out chef
  • What: wants to save his restaurant
  • Obstacle: judges are his estranged siblings

If a draft contains more than one “who” or “what,” trim until only the central character and goal remain.

Quick Checklist for Writing a Logline

• Is the protagonist clearly defined? (Name isn’t required, but the role or trait should be obvious.)
• Do you state a concrete goal? (Avoid vague wishes like “find happiness.”)
• Is the main obstacle present? (What stands in the way right now?)
• Is it under 30 words? (Longer lines usually hide subplots.)
• Does it feel like a promise? (Someone hearing it should want to see the story unfold.)

Keep this checklist on a sticky note or in a digital note. When you feel stuck, read your draft aloud and ask the five questions—usually two or three tweaks are enough to turn a clunky paragraph into a punchy logline.

Adapting the Formula Across Genres

The same three‑part structure works for comedy, thriller, sci‑fi, and drama. The wording changes, but the protagonist‑goal‑obstacle skeleton stays intact. Browse the examples of effective loglines on our site to see genre‑specific twists and discover how a simple promise can sell any story.

Wrap‑Up: Your Next Step

A solid logline isn’t magic; it’s a repeatable process. Write down the three parts on separate lines, mash them together, and run the checklist for writing a logline. If the result feels forced, revisit the protagonist’s desire or the obstacle’s stakes. Apply this logline formula for screenwriters to your next draft and watch vague descriptions transform into crisp, sell‑able hooks.

Ready to sharpen more screenwriting skills? Subscribe to our newsletter for weekly, no‑fluff tips, and share this guide with any writer stuck on their logline. Happy writing!