Production numbering beside each scene heading, used for scheduling and call sheets.
Scene numbers appear in the margins beside each slugline once a script is locked for production - the shared index for schedules, call sheets, and editorial. Specs don't carry them; adding scene numbers to a submission draft is a classic tell of format learned from produced (shooting) scripts.
Plan with 30+ story frameworks, write your screenplay or novel, and let Quill coach every beat - it guides and never writes. Free account, no card.
