Writing Loglines

A logline is a one- or two-sentence summary of your screenplay. It distills the entire story into its most essential form: who the protagonist is, what they want, what stands in their way, and what is at stake. Writing a strong logline is one of the most important skills a screenwriter can develop.

In the film industry, loglines are the primary tool for pitching projects. Producers, agents, and executives read hundreds of loglines a week. Yours needs to capture attention, communicate the story's appeal, and leave the reader wanting more.

But loglines are not just a sales tool — they are also a writing tool. A clear logline serves as a compass throughout the development process, keeping your story focused and purposeful.

The Anatomy of a Logline

Every effective logline contains three core elements:

1. Protagonist

Who is the story about? Identify the main character and, if relevant, what makes them interesting or unusual.

Avoid generic descriptions like "a man" or "a woman." Instead, choose details that imply conflict or intrigue: "a cynical former FBI agent," "an ambitious young chef," "a lonely retiree."

2. Central Conflict

What does the protagonist want, and what prevents them from getting it? The conflict should be specific and active.

Weak: "A woman deals with her past." Strong: "A woman must confront the man who destroyed her family before he strikes again."

3. Stakes

What happens if the protagonist fails? The stakes give the story urgency and emotional weight. Without stakes, the conflict feels academic.

Weak: "A detective tries to solve a case." Strong: "A detective must solve the case before the killer targets his own daughter."

The Formula

While there is no rigid formula, most loglines follow a pattern:

[Protagonist] must [action/goal] or else [stakes] when [inciting event/obstacle].

This is a starting point, not a cage. As you practice, your loglines will become more fluid and natural.

Examples of Strong Loglines

Jaws (1975)

A skeptical police chief must hunt a great white shark terrorizing a beach town, but the town's mayor refuses to close the beaches during the profitable tourist season.

Why it works: The protagonist is specific (skeptical police chief), the conflict is clear (shark vs. town politics), and the stakes are visceral (people will die).

The Matrix (1999)

A disillusioned hacker discovers that reality is a computer simulation and must join a group of rebels to fight the machines that enslave humanity.

Why it works: The premise is inherently intriguing, the protagonist's arc is implied (from disillusioned to empowered), and the stakes are existential.

Get Out (2017)

A young Black man visits his white girlfriend's family for the weekend, only to discover a horrifying secret about their intentions.

Why it works: The setup is mundane (meeting the parents), which makes the twist more shocking. The stakes are deeply personal and escalate quickly.

Parasite (2019)

A poor family schemes to infiltrate a wealthy household by posing as unrelated, highly qualified professionals, but their plan spirals out of control.

Why it works: The premise suggests class conflict, dark comedy, and escalating tension. The phrase "spirals out of control" promises that things will get worse.

Common Logline Mistakes

Using Character Names

Unless your protagonist is a well-known historical figure, names mean nothing in a logline. Use descriptive identifiers instead.

Weak: "John McClane must save hostages from terrorists in a building." Strong: "A street-smart New York cop must save hostages from terrorists in a Los Angeles skyscraper."

Describing the Theme Instead of the Plot

A logline should describe what happens, not what the story means.

Weak: "A story about the corrupting nature of power." Strong: "A small-town sheriff slowly takes over the criminal enterprise he was hired to destroy."

Including the Ending

A logline should tease the story, not spoil it. Set up the conflict and stakes, then let the reader wonder how it resolves.

Making It Too Long

If your logline exceeds three sentences, it is probably a synopsis, not a logline. Cut ruthlessly. Focus on the essential dramatic question.

Being Too Vague

Specificity is what makes a logline compelling. "A man goes on a journey" tells us nothing. "A grieving father drives across the country to deliver a letter to his estranged son" tells us everything.

Using Your Logline as a Writing Tool

Once you have written a logline, use it throughout the writing process:

• Before writing — does your outline deliver on the promise of the logline?
• During writing — does each scene serve the central conflict described in the logline?
• After writing — does the finished screenplay fulfill the premise?

If the story drifts away from the logline, either the logline needs updating or the story has lost focus.

Frequently Asked Questions

Can a logline be one sentence?

Yes. Many of the best loglines are a single, well-crafted sentence. However, if two sentences allow you to communicate the premise more effectively, use two. Clarity matters more than brevity.

Should I include the genre in my logline?

It is not necessary to state the genre explicitly. A well-written logline implies its genre through tone, content, and stakes. "A family moves into a haunted house" clearly suggests horror without saying "horror."

How many loglines should I write for one screenplay?

Write as many versions as it takes to find the strongest one. Some screenwriters write dozens of variations. Test different loglines on friends, colleagues, or writing groups to see which generates the most interest.

What if my story is too complex for a logline?

If you cannot summarize your story in one or two sentences, the core concept may be unclear. This does not mean the story is bad — it means the central dramatic question needs sharpening. The logline exercise often reveals structural weaknesses before you start writing.

Next Steps

With a strong logline in hand, you are ready to expand your concept:

• Treatments — develop your logline into a full narrative summary
• Beat Sheets — map the key moments of your story
• Outlining — create a detailed scene-by-scene plan
• Finding Story Ideas — go back to the source if your logline needs reworking
• Story Structure — understand how your logline fits into larger narrative frameworks