What to Cut, What to Keep
A 400-page novel holds far more story than two hours of film can. Adaptation is, above all, an act of ruthless compression — and knowing what to protect while you cut is the heart of the craft.
Here's the math that scares every new adapter: a typical novel runs 90,000 words or more, and a feature screenplay runs about 20,000. You are going to lose most of the book. Not trim it — lose it. Subplots, minor characters, entire chapters you loved will not survive, and that's not failure; that's the job. The films that go wrong are almost always the ones that tried to keep everything and ended up a rushed, shapeless highlight reel. The ones that soar had the courage to cut deep and protect what mattered.
Start from the spine, not the book
The mistake is to open the novel at page one and start "translating." Instead, work from the spine you found in your adapter's read: whose story is this, what do they want, and what's in the way. Then judge everything in the book against that spine. The question for every subplot, character, and scene is simple and merciless: does this serve the central story I'm telling? If yes, it's a candidate to keep. If no — however beautiful — it goes.
- Keep what drives the spine. Scenes that advance the protagonist's pursuit, raise the stakes, or deepen the central relationship.
- Keep the iconic moments. The handful of scenes readers will expect and the marketing will sell. Betray these at your peril.
- Cut the detours. Subplots that don't feed the main line, no matter how rich, are the first to go.
- Cut the duplicates. Novels often make the same point in three scenes. Film makes it once, well.
Compress with combination
Cutting isn't only deletion — it's consolidation. Two of the adapter's most powerful tools:
- Combine characters. Three of the protagonist's friends who each serve a small function can often become one vivid character who does all three jobs. Fewer people, deeper impact, less screen time spent introducing everyone.
- Collapse events. A realization the book reaches over five chapters can happen in one decisive scene. Merge beats so a single moment does the work of many pages.
Done well, combination doesn't feel like loss — it feels like focus. The film gets tighter, the characters get sharper, and the audience never misses what you removed because they never knew it was there.
Protect the soul, not the plot
Here's the subtle part. What you must protect isn't the plot — it's the soul: the feeling, theme, and central relationship that made the book matter. You can change events, cut characters, and rearrange the timeline, and audiences will forgive all of it — if the film still feels like the book felt. Fans don't riot because a scene is missing; they riot because the movie lost the spirit of the thing they loved. Cut freely, but guard that spirit with your life.
When I'm agonizing over a cut, I ask one question: "If this were gone, would the film still be the same story?" If yes, it goes, even if it's my favorite chapter. Early on I kept a gorgeous subplot out of love and it bloated the whole middle — the movie limped. I finally cut it and the film snapped into focus. Nobody who saw it ever knew that subplot existed. That's the lesson: your love for a scene is not evidence it belongs.
Once you've decided what survives, a related question emerges — of everything you're keeping, what is the one line that holds it together? That's finding the spine, and it's next.
Break down your source material, outline the adaptation, and draft your script in one place. The Toolbox turns the messy work of adaptation — beat-mapping a novel, tracking what you cut — into a clear, structured workflow.