Most screenwriters can feel when an ending is wrong long before they can explain why. It plays flat in the room, or a reader says something vague like it did not quite land, and the writer is left guessing whether the problem is the last ten pages or something planted on page twelve. The good news is that ending problems are diagnosable. They almost always trace back to one of three failures: something set up early was never paid off, the theme was abandoned in favor of plot mechanics, or the outcome was handed to the protagonist instead of earned by them.
Trace every setup back to its payoff
Before judging whether an ending works emotionally, do the mechanical audit first. List every object, line of dialogue, skill, relationship, and piece of information the script draws attention to in the first half. Then check whether each one resurfaces in the climax or resolution. A setup that never pays off reads as a loose thread. A payoff that appears without a setup reads as a cheat, even if it is dramatically satisfying in the moment, because the audience senses they were not given a fair chance to see it coming.
The reverse version of this test matters too
Read your climax and resolution scenes first, cold, and list everything the protagonist knows, has, or can do in that moment. Then check your first forty pages for evidence that each of those things was planted. If you find capabilities or knowledge in the ending that appeared from nowhere, that is usually the exact spot a reader will call convenient, even if they cannot articulate why.
Check whether the theme actually resolves
A plot can resolve while a theme does not, and that mismatch is one of the most common reasons an ending feels hollow rather than false. If your script is asking a question like can a person outrun their past, or does loyalty cost more than it returns, the ending needs to take a position on that question through the protagonist's choice, not just through the plot's outcome. A character who survives the final confrontation has resolved the plot. A character whose survival required them to finally answer the thematic question the story has been asking has resolved the story.
One way to test this: write one sentence describing what your protagonist believed in scene one, and one sentence describing what they believe in the final scene. If those two sentences are identical, either the character did not change, or the ending is resolving the wrong thing. If they are different but the shift never gets dramatized, meaning it happens off screen or is only stated in dialogue, that is a sign the ending is asserting a resolution instead of earning one.
Earned outcomes versus convenient outcomes
Endings usually fail one of two ways. Either the protagonist gets what they want or need through their own choices and the accumulated cost of the story, or the plot arranges an outcome for them. Both can be technically well written. Only one tends to satisfy an audience on reflection.
| Earned ending | Convenient ending |
|---|---|
| Resolution flows from a choice the protagonist makes, often at a cost | Resolution flows from an external event, coincidence, or new information arriving late |
| The final choice reflects the thing the protagonist learned or refused to learn | The final choice is disconnected from the protagonist's arc; anyone could have made it |
| Supporting characters' fates connect to decisions made earlier in the story | Supporting characters are rescued, punished, or repositioned to serve the ending's needs |
| The ending could not happen in act one, because the protagonist was not yet capable of it | The ending could happen at almost any point, it just happens to arrive last |
Neither column describes tone. A dark, tragic ending can be earned. A happy ending can be convenient. The distinction is about causality, not mood.
Run the removal test
Take your climactic scene and ask what would happen if you deleted the scene right before it, the one many writers think of as a minor connective beat. If your ending still works exactly the same way, that connective scene was not doing structural work, and there is a decent chance your ending is running on momentum rather than logic. Endings that are truly earned tend to be fragile in a good way; remove an earlier beat and the ending stops making sense, because it was built on it.
Get outside eyes, and expect disagreement
Writers are the worst judges of their own endings because they already know what is supposed to happen, which makes convenient outcomes feel inevitable from the inside. This is where a second opinion earns its keep, whether that is a writers group, paid coverage from a service like WeScreenplay or ScriptReaderPro, a script consultant, or a structured tool.
Movie Mentors is built for exactly this kind of check, since you can put filmmaker personas modeled on people known for very different endings, say one known for earned tragedy and another known for tight mechanical plotting, into the same conversation and see where they disagree about your climax. That disagreement is often more useful than agreement, because it shows you the actual fault line in your ending rather than a single averaged verdict. It is worth remembering these are AI reconstructions built from public interviews and commentary, not the filmmakers themselves, so treat the notes as a lens for testing your own judgment, not a verdict to follow blindly. It is also text based feedback; it cannot replace hearing your climax read aloud by actors, which is where pacing and unspoken tonal problems tend to surface no matter how solid the structure is on paper.
What none of this can tell you
No test, human or AI, can tell you whether an ending is good in the sense of original, surprising, or emotionally powerful. Setup and payoff tracking, theme resolution, and the earned versus convenient distinction will tell you whether an ending is structurally sound. Whether it is also memorable is a separate question, and that one still depends on the writer's specific choices, not a checklist.
An ending that passes every structural test can still be forgettable, and a slightly imperfect ending that lands a genuine emotional truth can outlast a mechanically flawless one. The tests in this piece will catch the failures that make readers stop trusting your script. They will not write the scene that makes someone remember it.
Originally published at https://www.moviementors.ai/answers/ending-doesnt-work.html.
Written by the team behind Movie Mentors.
