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Finding and Testing a Premise
How to tell whether an idea has enough life for a whole film—and what to do when it is still only a promising fragment.
01 / The idea
How do you know whether an idea can carry a screenplay?
A workable premise contains an active relationship between character and situation. It creates a family of possible scenes, promises escalation and gives you a faint sense of what the ending might ask of the character—even if the ending itself is not known.
A lot of screenwriting language makes simple ideas sound more mysterious than they are. So let's start with the version you can actually use while you're writing.
02 / What to remember
Three things worth holding onto
You don't need to hold all of this in your head at once. These are three things worth coming back to when the idea feels slippery or the pages stop sounding like the film you imagined.
Separate subject from premise
Grief, artificial intelligence and friendship are subjects. A premise gives the subject a person, problem and clear direction.
Make sure the idea keeps creating trouble
A good premise keeps handing you new scenes. If one honest conversation could solve everything, the problem may be too small—or the characters may not have a strong enough reason to avoid that conversation.
Find the contradiction
A useful premise often puts the least suitable person in the most revealing situation, or makes the desired prize threaten what they truly need.
03 / On the page
Try it this way
There are plenty of ways into a story. This is one route you can try—not a formula, just something to get you moving when the blank page has been staring back for too long.
- 1
State the ordinary world
Describe the protagonist's stable pattern before it is challenged.
- 2
Introduce the destabiliser
Name the event, arrival or decision that makes the old life unsustainable.
- 3
Project five complications
If the premise cannot naturally generate five distinct escalations, widen the arena or sharpen the opposition.
- 4
Imagine the poster and final choice
A clear central image and a meaningful last decision are quick tests of cinematic potential.
04 / Trouble spots
If this feels familiar, take another look
The idea is a world with no central conflict.
The protagonist could be replaced without changing the story.
The promise belongs to one scene rather than a whole film.
The premise depends on withholding basic information from the audience.
Don't treat this list as a scorecard. Every draft has a few of these. Pick the one causing the most trouble, find the earliest place it appears and work forward from there.
05 / Have a go
Try this on your script
Pitch the idea in three versions: one sentence, fifty words and one page. Any element that survives all three versions is probably part of the real premise.
A couple of questions writers ask
How do you know whether an idea can carry a screenplay?
A workable premise contains an active relationship between character and situation. It creates a family of possible scenes, promises escalation and gives you a faint sense of what the ending might ask of the character—even if the ending itself is not known.
How can I practise finding and testing a premise?
Pitch the idea in three versions: one sentence, fifty words and one page. Any element that survives all three versions is probably part of the real premise.
Where to go next