Prologue
An introductory section preceding the main story that establishes context, tone, or a prior event.
Prologue
noun | Screenwriting & Development
An introductory sequence that precedes the main narrative, establishing context, backstory, world-building information, or a prior event whose consequences will shape the story that follows. The prologue is distinct from the first act: it operates outside the main story's timeline or narrative scope, providing the audience with information or experience that positions them correctly to receive the story that is about to begin.
Quick Reference
| Also Known As | Cold open, pre-credits sequence, opening crawl |
| Domain | Screenwriting & Development |
| Also Used In | Production (shot during principal photography but edited as a distinct sequence) |
| Structural Position | Before the main narrative begins |
| Function | World-building, backstory delivery, tone-setting, frame establishment |
| Opposite | Epilogue (concluding supplementary section) |
| Related Terms | Epilogue, Exposition, Backstory, Flashback, Foreshadowing, Denouement |
| See Also (Tools) | Shot List Generator |
| Difficulty | Foundational |
The Explanation: How & Why
A prologue does work that the main story either cannot do or would be slowed by doing within its own timeline. It is a spatial and temporal exception: a section that stands outside the story proper and therefore operates by different rules.
Prologues serve several distinct functions. Historical or mythological context: many films, particularly fantasy, science fiction, and historical epics, open with a prologue that establishes the world's history and the conditions of the present story. The prologue to The Lord of the Rings: The Fellowship of the Ring (2001) delivers decades of Middle-earth history in eight minutes through Galadriel's narrated voice-over. Without it, the film's present-day conflict is incomprehensible. Prior event dramatization: a prologue may dramatize a specific past event whose consequences drive the main story, showing it directly rather than delivering it through exposition. Tone-setting: some prologues establish the emotional and aesthetic register of the film before the story begins: a thematic statement, a mood piece, an image sequence. Frame narrative: a film using a framing device (an older character recounting events) may use a prologue to establish the framing present before moving to the main flashback story. Stand by Me (1986) opens with an adult narrator in the present, establishing the frame.
The risk of the prologue is front-loading. Prologues delay the main story's beginning. If the prologue is too long, too expository, or insufficiently compelling in its own right, the audience arrives at the main story already tired of waiting. The prologue must earn its place by being genuinely necessary: by delivering something the main story needs but cannot accommodate within its own timeline.
Historical Context & Origin
The prologue has a history as old as formal drama. Greek theatre used a prologos, literally "before the word," to establish the play's situation, often spoken by a single character addressing the audience directly. Elizabethan theatre used a Chorus figure to deliver similar introductory context, most famously in Shakespeare's Romeo and Juliet and Henry V.
In cinema, the prologue appears in many forms. Silent film frequently used extensive title card prologues to establish historical and geographical context. The title card text crawl, most famously in Star Wars (1977), compresses galactic context into three paragraphs of scrolling yellow text before the first scene begins. The narrated voice-over over establishing imagery, the dramatized prior event, and the frame narrative establishing scene are all prologue variants that persist in contemporary cinema. Modern films tend toward shorter, more action-oriented prologues that establish immediate tension rather than expository context. The Dark Knight (2008) opens with a 5-minute bank robbery prologue that introduces the Joker without Batman present. Casino Royale (2006) opens with a black-and-white prologue showing Bond earning 007 status before the title sequence.
How It's Used in Practice
Scenario 1 - World-Building Prologue (Director / DP): A science fiction film opens with a 4-minute prologue: a voice-over narrator explains the environmental catastrophe that has made Earth uninhabitable, over images of the devastated planet, the refugee ships, and the colony worlds. No characters from the main story appear. The prologue budget is $180,000 for VFX plates and aerial footage. By the time the prologue ends and the main story begins, the audience understands the world, its history, and the stakes.
Scenario 2 - Prior Event Prologue (Screenwriter / Director): A thriller's main story begins 15 years after a kidnapping that defined its protagonist's life. Rather than delivering this backstory through flashback or exposition within the main narrative, the film opens with a 5-minute prologue dramatizing the kidnapping in full: the night, the child, the failure to prevent it. The prologue ends. A title card reads "15 years later." The main story begins with an adult protagonist carrying everything the audience has just witnessed. The prologue is shot in 4:3 aspect ratio to visually distinguish it from the main narrative's 2.39:1.
Scenario 3 - Tone-Setting Prologue (Director / DP): An arthouse drama opens with 3 minutes of wordless imagery: hands in water, a specific stretch of road at dawn, an empty chair at a kitchen table, a field in wind. No narrative information is conveyed. The sequence exists entirely to establish the film's tempo, its visual register, and the quality of attention it will require. The prologue is a contract with the viewer: this is the kind of film you are about to watch. The director and DP shoot it with a 24mm lens on a Sony VENICE 2, using natural light only.
Usage Examples in Sentences
"The prologue delivers the world's history before the story begins. Without it, the main plot is incomprehensible."
"Four minutes is too long for the prologue if nothing is happening. Dramatize the prior event. Do not just describe it."
"The Star Wars text crawl is a prologue in the most efficient form possible: three paragraphs, total context, story begins."
"Every prologue must earn the delay it creates. If the main story could begin without it, the prologue should not exist."
Common Confusions & Misuse
Prologue vs. First Scene: Not every opening scene is a prologue. A prologue is structurally outside the main narrative: it operates before the story's timeline begins, provides context from outside the main story's scope, or establishes a frame. A first scene that begins the story directly, introducing the protagonist in their present situation, is not a prologue even if it also establishes context. The prologue precedes the story. The first scene begins it.
Prologue vs. In Medias Res Opening: An in medias res opening begins the story in the middle of its action, then jumps back to the chronological beginning. This is a flash-forward followed by chronological rewind. It is part of the main narrative's structural arrangement. A prologue is prior to and outside the main narrative, not a rearrangement of it. Iron Man (2008) opens in medias res with Tony Stark under attack in Afghanistan, then jumps back. That is not a prologue.
Prologue vs. Cold Open: In television, "cold open" refers to the pre-credits sequence of an episode. A cold open can be a prologue, but it can also be the first scene of the main story. The terms overlap but are not synonymous. A cold open that begins the episode's plot is not a prologue. A cold open that shows a prior event outside the episode's main timeline is.
Variations by Context
| Context | How the Prologue Applies |
|---|---|
| Fantasy / Sci-Fi | World-building prologues are common and often necessary for audience comprehension |
| Thriller / Crime | Prior event prologues dramatize the crime or trauma that drives the main story |
| Literary Drama | Tone-setting prologues establish aesthetic register before narrative begins |
| Franchise Film | Opening crawls or recap prologues bring audiences up to speed on prior installments |
| Television | Cold opens serve prologue functions but may also begin the episode's main plot |
Key People & Films
George Lucas established the most iconic film prologue format with the Star Wars (1977) opening crawl, inspired by the Flash Gordon serials of the 1930s. Peter Jackson's The Fellowship of the Ring (2001) used an 8-minute narrated prologue to compress Tolkien's Second Age history. Christopher Nolan's The Dark Knight (2008) used a 5-minute bank robbery prologue to introduce the Joker without the protagonist present. Martin Campbell's Casino Royale (2006) used a black-and-white prologue to show Bond's first kill, establishing origin story framing. Steven Spielberg's Raiders of the Lost Ark (1981) opened with a 10-minute prologue sequence in Peru that has no plot connection to the main story but establishes Indiana Jones's character, tone, and world.
Equipment / Tools Reference
Prologues are scripted in standard screenplay format using software like Final Draft or Fade In. The prologue sequence is typically labeled "PROLOGUE" or "OPENING SEQUENCE" in the script. On set, the Shot List Generator helps plan the specific shots of a prologue sequence. Pre-visualization tools like Storyboarder or FrameForge help directors and DPs plan the visual language that distinguishes prologue imagery from the main narrative. For VFX-heavy prologues, Unreal Engine is increasingly used for pre-visualization and virtual production of establishing shots.
Standards & Specifications
There is no formal industry standard for prologue length, but convention in contemporary cinema favors brevity. Most studio film prologues run 2 to 8 minutes. The WGA does not regulate prologue formatting, but standard screenplay format places the prologue before "FADE IN:" or as the first sequence after it, labeled accordingly. The Academy Awards do not have a category for opening sequences, but the ACE Eddie Awards occasionally recognize editing of prologue sequences in their film editing categories. The Nicholl Fellowship screenwriting competition accepts scripts that include prologues, with no format restrictions on their use.
Common Questions / FAQ
Q: What is the difference between a prologue and a cold open?
A: A prologue is structurally outside the main narrative: it precedes the story's timeline, provides context from outside the main story, or establishes a frame. A cold open is the pre-credits sequence of a television episode. A cold open can be a prologue, but it can also be the first scene of the main story. The terms overlap but are not synonymous.
Q: How long should a prologue be in a screenplay?
A: Most contemporary film prologues run 2 to 8 minutes of screen time, which translates to roughly 2 to 8 pages of script. The prologue should be only as long as necessary to deliver its function. If the main story could begin without it, the prologue should not exist.
Q: Should I start my screenplay with a prologue or just begin the story?
A: Start with a prologue only if the main story cannot function without information the prologue delivers. If the audience would be confused without the prologue's context, include it. If the prologue only adds flavor or backstory that could be revealed later, cut it and begin with the main story. Many screenwriters and development executives advise against prologues unless they are structurally necessary.
Q: Is the Star Wars opening crawl a prologue?
A: Yes. The Star Wars (1977) opening crawl is a text-based prologue that delivers galactic context in three paragraphs before the first scene begins. It is the most efficient prologue format in cinema: no characters, no dramatization, pure informational context delivered in under 30 seconds of reading time.
Related Terms
- Epilogue - The structural counterpart at the story's end; a supplementary section after the main narrative concludes
- Exposition - Prologues often deliver exposition that the main narrative cannot accommodate within its own timeline
- Backstory - A common subject of prologues; events that occurred before the main story begins
- Flashback - An alternative to the prologue for delivering prior event material within the main narrative
- Foreshadowing - Prologues can foreshadow the main story's events through imagery, theme, or prior event
- Denouement - The resolution phase at the story's end, structurally opposite to the prologue
See Also / Tools
The Shot List Generator helps plan the specific shots of a prologue sequence, noting the visual language, tone, and information delivery goals that distinguish prologue imagery from the main narrative's visual style. For screenwriting structure guidance, see the blog post on screenplay openings and narrative structure.