# A-pages > Inserted pages on a locked script that avoid renumbering everything after them — material between 27 and 28 becomes 27A, 27B, and so on. Also known as A pages, lettered pages ## In practice A-pages exist because crews already scheduled "page 28." When a rewrite needs more room than a single swapped page allows, material between 27 and 28 becomes 27A, 27B, and so on. Letter suffixes keep history stable while new beats land without renumbering the back half of the locked script. A revised page and an A-page solve different problems. A revised page replaces an existing number with a new color generation. An A-page inserts length between two numbers when the scene grew. Confusing the two leads to missing pages in sides and confused lineups when the scene is rehearsed. Writers should not invent A-pages in an unlocked spec to "look official." Use them when you are on a locked continuum and production needs inserted paper. Until then, a normal continuous draft is clearer for managers and easier to read as story without fake production apparatus attached. ## See it formatted - [How to number screenplay scenes for production](https://www.inkwell.software/resources/screenplay-formatting/scene-numbers-production-drafts): When to add scene numbers, how locked pages and A/B scenes work, and why spec scripts usually omit them. Includes screenplay examples and revision guidance. ## Common questions ### What is the difference between an A-page and a revised page? A revised page replaces an existing page number with a new color. An A-page adds length between two existing numbers when the rewrite needs more room than a single swapped page allows. ### Why not just renumber everything after the insert? Because call sheets, sides, and lined scripts already point at the old numbers. Renumbering the tail of the book breaks references across departments overnight. ### Can A-pages themselves be revised later? Yes. 27A can go out in a new color like any other page. The letter addresses position in the continuum; color addresses which generation of that page is current. ### Do A-scenes and A-pages mean the same thing? Related idea, different unit. Lettered scene numbers insert scenes; A-pages insert pagination. Both protect locked references instead of renumbering the entire show. ## Related terms - [Locked script](https://www.inkwell.software/glossary/locked-script): A shooting draft whose page and scene numbers are frozen so every department shares one numbering scheme. After lock, changes become marked revisions instead of silently reshuffling the whole script. - [Revision colors](https://www.inkwell.software/glossary/revision-colours): The industry color sequence (white, blue, pink, yellow, and onward) used to mark each revision pass on a locked shooting script so the set knows which pages are current. - [White pages](https://www.inkwell.software/glossary/white-pages): The first locked generation of a shooting script — white paper (or the unmarked digital baseline) before colored revision rounds begin. - [Scene number](https://www.inkwell.software/glossary/scene-number): A scene number identifies a scene in a shooting script. Once numbers are locked, Scene 42 keeps its number so schedules, sides, and crew notes agree. --- Canonical page: