Script Supervisor

What they do

In pre-production the script supervisor prepares a continuity breakdown analysing the script by cast, action, wardrobe, props and story day, and times the script, which is a distinct skill and the production's first honest estimate of running time. On the floor they sit by the camera watching the scene against the page: dialogue dropped, actions that will not match across setups, eyelines that will not cut, and whether the coverage has crossed the line. They keep written and photographic records of dialogue, action, costume and props, and log camera and lens details against slate and scene numbers with the camera assistants. They mark up a lined script showing which setup covers which lines, note the director's preferred takes, and issue a daily progress report to production and to the visual effects supervisor on effects shots. Between setups the job is information: telling hair and make-up what state a character was in, telling an actor which hand held the glass, telling the first assistant director what has not been shot yet. As one SXSW panel of working supervisors put it, this is a department of one, with no assistant, giving something to every other department and needing something from most of them, and cheap enough that its absence costs far more than its presence.

What they decide

The calls that belong to this role and no other.

• Whether the scene as shot will cut together, and saying so before the unit moves on
• What the continuity record says: the notes, photographs and lined script that post will work from
• Which mismatches are worth stopping the unit for and which are invisible, which is the whole judgement of the job
• The screen time estimate for each scene and for the day
• Advises the director when needed coverage is missing; the director decides whether to shoot it
• Flags a crossed line or an unmatched eyeline to the director and cinematographer, who decide what to do about it

Principles of the craft

• Ask whether it cuts, not whether it matches: detail matters where the audience's eye will be. A watch on the wrong wrist in a wide is nothing; a cigarette at two different lengths across a shot-reverse-shot is a jump. Telling those apart is judgement, not a rulebook.
• Screen direction and eyeline are the two that actually break scenes: the 180-degree rule keeps an audience oriented, and eyeline matching, including the height and angle of a look rather than only its left or right, is what makes two performances photographed hours apart appear to happen in one room.
• Write for an editor you have never met: the record is a search index. When the director asks for the take where the hand moved a particular way, the note either finds it in ten seconds or the afternoon is gone.
• The record is also the schedule: an honest progress report and an honest screen time estimate tell production what has really been achieved. A supervisor who times well is protecting the film's length and its shooting days at once.
• A department of one produces information: every department needs something from you and you hand something to each of them. Speaking up costs a moment of friction and not speaking up costs a reshoot.

Common mistakes

• Recording everything at the same level of detail, producing notes that are complete and unusable
• Watching the monitor instead of the actor, where the mismatches actually happen
• Raising a trivial mismatch in front of the cast and spending the credibility needed for the one that matters
• The experienced version: an immaculate record kept while failing to notice the coverage the scene needed and never got, which is the one failure the edit cannot repair
• Timing the script optimistically, so nobody knows the film runs long until the assembly
• Not agreeing a note format with the editor and assistant editor, so a good record arrives in a form post has to retype

How to learn it

Exercises and routes in, not a reading list.

• Take a scene from a finished film and reconstruct it as a lined script from the screen alone: every setup, which lines it covers, where the cuts fall. You will learn more about coverage in an afternoon than in a term of theory.
• Shoot a two-page scene with three deliberate continuity errors of different severity, a prop position, a costume change and a crossed line, then cut it and show three people. Note which errors they saw and which they did not.
• Time a screenplay by reading it aloud and playing the action, then compare your figure with the finished film's running time for those pages. Repeat until you are consistently within a page.
• Supervise one short film for nothing, hand your notes to the editor, then sit with them for an hour while they cut and write down every question your notes failed to answer.
• Photograph a table dressed for a scene, leave the room, come back and reset it from the photograph alone. That is continuity work at its most literal, and it teaches you what to photograph.