We’re all familiar with it, and many of us dread it. It’s that terribly brutal chore of condensing 100+ pages of story into a single sentence. It’s often invoked as a necessary component of the marketing package of your script once it’s complete and ready to be shopped around. However, the depth the logline’s purpose and utility go far beyond that. It’s a mistake to overlook it as a powerful prewriting tool, guide, and measuring stick for a developing idea.

According to John Truby, most scripts fail at the premise level, meaning that the foundational concept isn’t adequately fleshed out before the writer opens up Final Draft and gets going. Forming a logline isn’t the catchall remedy to this, but it can be the ideal starting point for troubleshooting. It’s a super quick, super efficient device to gauge whether your premise or situation has graduated to the level of a story; and to get you there if it hasn’t. 

The logline lets you know if the bare essentials are taken care of. In its most common and basic form, it represents the skeletal framework of 1) protagonist, 2) protagonist’s goal, 3) antagonist (or antagonizing force), 4) stakes (consequences if the goal isn’t achieved), and maybe 5) world of the story if it’s unique and/ or vital to the narrative.

Example – Logline for The Dark Knight: A masked vigilante hero must stop a sadistic domestic terrorist before his attacks destroy Gotham City.  Loglines can undoubtedly vary in form and structure, and will usually be modified later when the objective becomes marketing and promotion, but most of the time they’ll look something like this at the outset.

See all five of those pieces in there? If you can’t roll call these elements and articulate how they operate together in one concise sentence, then you probably have some fundamental story problems; and these are much easier to take care of at the prewriting stage than after you’ve written 25 pages and don’t know where to go from there.

This is coming from experience. I had an idea for an action thriller that I was so fond of, it seemed as if the entire story just played right out in my mind. So I just dove in head-first and started cranking out pages. Somewhere around the end of Act I, I hit a wall. Some glaring logic issues started creeping into my head that needed addressing before I could move on. A fellow writer, much more experienced than I, suggested taking it back to the logline to ferret out any missing pieces.

“Logline? Those awful one-sentence summary things they harped on in filmschool? Isn’t that for the pitch phase?” I’m not proud of my mentality or writing from those days. Anyway, I took his advice and the missing link came jumping off the page at me. 

I had a familiar but unique protagonist, with a clear goal, and his polar-opposite-in-every-way antagonist that had perfectly organic reasons to oppose him. The bloodbath finale between them was the image that made we want to write it in the first place.

BUT… 

Those logic problems came from one central notion: why wouldn’t he just walk away from the situation before said bloodbath ever ensued? There were no stakes. So many other building blocks were so clear, and so many of the plot points practically wrote themselves, that I’d developed a total blind spot when it came to the stakes. Who cares why he has to be in this situation? If he’s not, my awesome story can’t happen! That’s why! Well, I don’t think that’s going to cut it with a producer or manager.

This is where things really got interesting. It’s just stakes. No big deal, right? Just contrive some reason that explains his plight and traps him in it. I’ll have this script back up and running in no time; awesome story still intact. Not even close.

The narrative corner I’d painted myself into couldn’t have been a better arena in which to learn the indispensable nature of each of those logline components. It dawned on me real fast that they interconnect like the cells of a Rubik’s Cube. Change one, and you shift several others with it. The most precious ideas in the story were so dependent on certain choices by the protagonist, that the introduction of every type of stakes I brainstormed threw them off. 

I’d reached a storytelling impasse. My premise needed stakes, but the addition of stakes altered it into something I wasn’t so excited to write. So I shelved it, extracted some of my favorite aspects, and put them into a new script; one with a complete logline.

Is that idea dead forever? Of course not. No story issue is insurmountable, and it may just get another look someday. But the point is that looking to the logline allowed me to avoid digging deeper into a story that had already failed at the premise level and direct my time and effort toward something with a greater chance of success. So when you’re getting a newly-formed story concept off the ground, bypass this step at your peril.

What do you think? Do you agree that the logline is an important guide? Let us know!