Screenwriting Glossary

50+ essential terms every screenwriter should know — from Act Break to Voice-Over. Use the search to find a term, or scroll the alphabetical list.

Act Break: A turning point that divides the screenplay into major sections (typically Act I, II, III). Each break shifts the protagonist into a new dramatic situation with new information or stakes.
Action Line: The descriptive text in a screenplay that describes what the audience sees and hears (excluding dialogue). Written in present tense, kept lean and visual.
Antagonist: The character (or force) that actively opposes the protagonist's goal. Antagonists are not always villainous; they can be sympathetic figures whose own goals conflict with the hero's.
Backstory: Events that happened before the screenplay begins. Used judiciously, backstory deepens character; over-used, it slows pacing. The classic rule: only reveal backstory when the present scene demands it.
Beat: A small unit of dramatic action — typically a moment of decision, reaction, or shift. Distinct from a scene. A two-page scene might contain 4-6 beats.
Beat Sheet: A document that maps the major story turns of a screenplay (often 12-20 beats). Save the Cat's 15-beat template is the most well-known. Used during pre-writing.
Catalyst (Inciting Incident): The event that disrupts the protagonist's ordinary world and sets the story in motion. Usually lands within the first 15 pages of a feature.
Character Arc: The internal transformation a character undergoes across the story. Can be dynamic (significant change), static (the world changes around them), or flat (no change).
Climax: The point of maximum dramatic tension where the central conflict is resolved. Typically located in Act III at roughly 90-95% through the screenplay.
Comedy of Manners: A subgenre of comedy that satirizes the customs and pretensions of a particular social class. The Importance of Being Earnest, Bridgerton.
Conflict: The tension between opposing forces, ideas, or characters. The engine of all drama. Can be internal (within a character) or external (between characters or between a character and their environment).
Coverage: A written analysis of a screenplay produced by a professional reader for a producer or studio. Typically includes a synopsis, comments on craft, and a recommendation (Pass / Consider / Recommend).
Denouement: The wrap-up after the climax — the falling action that ties up loose ends and shows the new equilibrium. From French for "untying."
Deus Ex Machina: A plot device where a sudden, unexpected element resolves a seemingly impossible problem. Generally considered a weakness, since it bypasses character agency.
Dialogue: The spoken exchanges between characters. Strong screenplay dialogue does multiple things at once — reveals character, advances plot, creates subtext, and feels distinct between speakers.
Dramatic Irony: A technique where the audience knows something the characters do not. Generates suspense and emotional engagement.
Exposition: Information the audience needs to understand the story (backstory, world rules, relationships). Best delivered through conflict and action rather than direct explanation.
Flashback: A scene that takes place chronologically before the main story timeline. Most effective when used to deepen present-tense conflict, not to dump information.
Foreshadowing: Planting hints early in the story about events that will pay off later. Good foreshadowing is invisible on first viewing but feels inevitable on second.
Genre: A category of storytelling defined by conventions of plot, tone, and audience expectation (drama, thriller, comedy, horror, etc.). Genre shapes structure expectations.
Hook: The opening element of a screenplay — visual, dramatic, or thematic — that grabs audience attention and earns the right to continue. Often within the first 1-3 pages.
Inciting Incident: See Catalyst. The event that pulls the protagonist out of their ordinary world and into the story.
Logline: A one-sentence summary of the story (typically 25 words or fewer) covering protagonist, conflict, and stakes. The most-tested marketing tool in the screenplay business.
MacGuffin: An object or goal that drives the plot but matters less to the audience than the characters' pursuit of it. Hitchcock's term. Examples: the briefcase in Pulp Fiction, the falcon in The Maltese Falcon.
Midpoint: The structural turning point at roughly 50% of the screenplay. A great midpoint reframes the story's central question or radically shifts the protagonist's strategy.
Monologue: A long uninterrupted speech by a single character. Difficult to write well — most monologues should be cut or reduced to dialogue exchanges.
Motivation: The internal drive that pushes a character to act. Strong motivation makes character choices feel inevitable; weak motivation makes them feel arbitrary.
Off-Screen (O.S.): A technical cue indicating a character is speaking from off-camera but within the same physical space. Distinct from V.O. (voice-over).
Pacing: The perceived speed of information delivery in a screenplay. Driven by new-information density, question-answer cycles, and stakes escalation — not by literal scene length.
Pinch Point: A scene where the antagonistic force directly threatens the protagonist, reminding the audience of the stakes. Typically two pinch points exist in a feature, around 35-40% and 60-65%.
Plot: The arrangement of events in a story. Distinct from "story" — story is what happens; plot is how the audience experiences it.
Plot Hole: A logical inconsistency in the script that the story's internal rules cannot explain. Different from ambiguity — plot holes break the audience's suspension of disbelief.
Point of View (POV): The character whose experience the audience primarily inhabits. Most films are told primarily through the protagonist's POV, but multi-POV structures are common in ensemble work.
Premise: The fundamental concept of the story, usually expressed as a "what if" question. Stronger than logline, less polished — used during pre-writing.
Protagonist: The main character whose pursuit of a goal drives the plot. Not necessarily a "hero" — many great protagonists are morally complex or even unlikeable.
Reversal: A scene or beat where the situation changes radically — usually inverting expectations. The midpoint reversal is the most famous structural example.
Rising Action: The escalating series of complications that build toward the climax. The bulk of Act II.
Scene: A unit of dramatic action that takes place in one location and one continuous time. Every scene should produce a measurable change between its start and end.
Scene Heading (Slug Line): The line at the start of each scene that establishes location and time of day. Format: INT./EXT. LOCATION - TIME OF DAY.
Setup and Payoff: A storytelling principle where elements introduced earlier in the script (the setup) become important later (the payoff). Strong scripts have many such pairs.
Spine: The single dramatic question that organizes the entire screenplay. ("Will the kingdom be saved?", "Will they fall in love?") Every scene should relate to the spine.
Stakes: What the protagonist stands to gain or lose. Personal stakes (a relationship, a child) typically outperform abstract stakes (the world, civilization) for emotional engagement.
Story Beat: See Beat.
Subplot: A secondary storyline that runs parallel to the main plot. Strong subplots reflect or counterpoint the main plot's themes; weak subplots feel like distractions.
Subtext: The unspoken meaning beneath dialogue and action. The pleasure of cinema is largely the gap between what characters say and what they mean.
Theme: The underlying idea or argument the screenplay makes about the world. Theme should emerge from the story, not be imposed on it.
Three-Act Structure: The classic narrative framework: Setup (Act I, ~25%), Confrontation (Act II, ~50%), Resolution (Act III, ~25%). The most common structure in Western screenplays.
Treatment: A prose summary of a screenplay (typically 5-30 pages) covering plot, characters, and tone. Used to pitch a story before writing the full script.
Voice-Over (V.O.): A technical cue for narration heard by the audience but not by the characters in the scene. Distinct from O.S. — V.O. comes from outside the diegetic space.
Want vs Need: A character has a conscious want (the surface goal they're pursuing) and an unconscious need (the deeper transformation they require). The best stories pit these against each other.