Spend one day on a film set and you'll hear a language that sounds like English but makes no sense. People shout "Martini!" before lunch, someone asks you to "check the gate" and the director promises to "fix it in post". Here is a practical guide to the film set slang you'll actually hear, explained by a crew brand that hears it every day.
Check the Gate
On film cameras, the gate is the opening where each frame of film is exposed. After a setup was finished, the camera assistant would open the camera and inspect the gate for hairs, dust or debris, because a hair in the gate would show up on every frame of the take. If the gate was clean, the crew could move on. If not, they went again.
On digital cameras there is no film gate, but the phrase lives on. Today "check the gate" often means checking the sensor and lens for dust, or simply confirming the shot is good before the crew tears it down. It has also become a general crew expression: make sure the work is actually done before you move on.
The Martini Shot
The Martini Shot is the last shot of the day. The joke is that the next "shot" will be in a glass. When the first AD calls it, energy on set changes: everyone knows wrap is close, and everyone also knows that this is the moment when things tend to go wrong.
Its partner is the Abby Singer, the industry nickname for the second-to-last shot of the day. If you hear "this is the Abby", the Martini is next, and wrap is (in theory) in sight.
Fix It in Post
Possibly the most dangerous four words in filmmaking. "We'll fix it in post" means a problem on set (a boom in shot, a reflection, a continuity error) will supposedly be solved later in post-production by editors, colourists or VFX artists.
Sometimes it is true. Often it is expensive. Ask any editor and they will tell you that fixing it on set takes thirty seconds, and fixing it in post takes three days and a budget meeting. That's why crew wear it as a joke, and why our "We Fix It Now" design exists.
Back to One
"Back to one" means everyone returns to their starting positions for another take: actors to their first marks, the camera to its opening position, background extras to where they began. It's usually called right after "cut", sometimes before the director has finished thinking.
Rolling, Speed and Action
Before every take there's a little ritual. The AD calls "roll camera" or "roll sound". Sound replies "speed" once the recorder is running (a holdover from when tape machines had to reach the correct speed). Camera answers "rolling". The slate is marked, and only then does the director call "action".
Shout "action" before speed and you'll learn a lot of new words very quickly.
MOS
A shot recorded without sound is called MOS. Nobody fully agrees on what it stands for. Popular theories include "motor only sync" and "minus optical sound", and there is a much-repeated legend about a European director saying "mit out sound". Whatever the origin, if the slate has MOS written on it, sound isn't rolling.
Room Tone
Room tone is a recording of the "silence" of a location, usually thirty seconds to a minute of everyone standing perfectly still. Every room has its own hum, and editors use room tone to fill gaps in dialogue so cuts sound natural. It is the most awkward minute of any shoot day, especially when someone's stomach decides to join in.
Last Looks
"Last looks" is the call for hair, make-up and wardrobe to step in for final touches before a take. It's also, unofficially, when everyone else checks their phone one more time.
Checking the Eyeline, Hitting the Mark
A mark is a small piece of tape on the floor that tells an actor (or a camera) exactly where to stand. Hitting the mark matters because focus is set to that distance. "Eyeline" is where the actor is looking, usually just beside the lens. Crew members are frequently asked to "clear the eyeline", meaning: please move, you are standing exactly where the actor needs to look.
Walk and Talk, Golden Hour, Wrap
- Walk and talk: a scene where characters talk while walking, usually with the camera moving backwards in front of them. Camera operators who do this all day know why one of our designs says "I Walk Backwards".
- Golden hour: the period just after sunrise and before sunset when light is warm and soft. Everyone races to get the shot before it disappears.
- That's a wrap: the day (or the whole production) is finished. The most beautiful words on any set.
Why Film Set Slang Matters
Set language exists because it's fast. A crew of fifty people needs to communicate clearly over noise, through radios and under time pressure. A short phrase that everyone understands saves minutes, and on a film set minutes are money.
It's also part of crew identity. Using the slang means you belong. That's the idea behind DOPwear: T-shirts built from the phrases crew live by, from "Check the Gate" to "Quiet on Set". If you work behind the camera, or you're shopping for someone who does, browse the DOPwear collection and wear the language.