The door that won't open

I made a 15 second film of the fox outside a small supermarket on a grey winter afternoon. The automatic doors will not open for him. He waits, steps back and forward, and waves a paw at the sensor. A pigeon walks up, the doors slide open for it, and it walks in. The doors close as he steps forward. It is one shot from one still camera, made in one run of Seedance 2.5, and it came out right the first time.

What the Coens do

The Coen brothers' comedy comes from a plain camera watching something absurd. In Fargo the camera barely moves, some interior scenes play out in a single shot, and long shots make Jerry, the car salesman at the centre of it, look small against his trouble. Roger Deakins, who shot it, called it more observational than their earlier films. Nobody in the frame tells you it is funny, and the camera does not either. The joke is the gap between how ordinary it looks and how ridiculous it is.

Their colour follows the place. Fargo is white snow and grey sky, so drained that the few strong colours, like blood on the snow, jump out. O Brother, Where Art Thou? is dusty gold. Each film picks one look and holds it.

So the film is built from those choices: one still camera, a long shot, flat light, washed-out colour, a deadpan fox and an indignity he takes without a flicker. The joke is on him, because a film where he loses is funnier than one where he wins.

Why the prompt is written the way it is

I never name the Coens in the prompt. A video model does not know what "Coen brothers" means as a set of decisions, and a director's name is as likely to pull in a mood as a method. So each of their choices is written out as something the camera does.

"ONE SINGLE CONTINUOUS SHOT for the whole film, no cuts." A video model's habit is to cut. Most films I have made with it had several shots, because it reads a 15 second prompt as a scene to edit. So this goes at the top in capitals, and again in the list of things it must not do. It held: there is not a single cut in the film.

"A plain, observational camera on a tripod that never moves, never pans, never zooms." A still camera in a comedy says that this is nothing worth noticing, which is the Coen joke. It also keeps the fox steady, since every camera move is a chance for his face to drift.

"A long shot from across the street at eye level, framed square-on to the shop front, level and centred, like a dull record of an ordinary afternoon." The long shot keeps him small against the doors. Square-on and level makes it look like a picture nobody chose, and the last phrase gives the model the attitude in words it understands.

"Flat, sunless overcast light, a pale white sky, washed-out desaturated colour... The only strong colour in the whole frame is the fox's orange fur." This is the Fargo idea. Drain everything else, and your eye goes straight to the one warm thing in the frame, which is him. The pigeon stays grey and blends into the street, so it is a small surprise when the doors open for it.

A line for every second. The film is mostly waiting, and a model left with empty seconds fills them: he fidgets, someone walks past, a car goes by. So each beat says exactly what he does, and says it in small, plain movements: he stands still, he takes one step back, he lifts one paw. The street is written as empty, with no people and no cars.

"The doors stay shut" after every attempt, and "The doors never open for the fox; they open only once, for the pigeon" in the list of things it must not do. A model's instinct is to open a door for someone walking up to it, because that is what doors in films do. The whole joke depends on it not happening, so it is said four times.

"Much shorter than the doors" and "a small plain grey sensor box above them". These give his paw wave a reason. The doors are too big for him and the sensor is out of reach, so every action he takes has its cause in the frame.

"One real grey city pigeon, walking, never flying." A flying pigeon would be fast, messy movement, which is where the model breaks. A walking one is slow, and its walk is funnier.

"No readable signs, no lettering on the shop front." Any lettering comes out as made-up letters, so the shop front is plain.

"Real street sound only... Long silences. No music." Music would tell you it is a joke. Silence, a distant car and the whir of the door motor let the camera keep a straight face.

The last beat has him turn his head and stare at the camera. It is how several of our fox films end, and it gives the viewer a held moment to laugh in.

The prompt

It was given two of our own pictures, the fox from the front and from behind, and no picture of the place. Here it is as it was run:

STYLE: Photorealistic live-action film footage, shot on 35mm on a real small-town Irish street on a grey winter afternoon. ONE SINGLE CONTINUOUS SHOT for the whole film, no cuts. A plain, observational camera on a tripod that never moves, never pans, never zooms: a long shot from across the street at eye level, framed square-on to the shop front, level and centred, like a dull record of an ordinary afternoon. Flat, sunless overcast light, a pale white sky, washed-out desaturated colour: dull greys, off-whites and wet concrete, grey slush at the kerb. The only strong colour in the whole frame is the fox's orange fur. Slight film grain. The stylized fox character from [Image1] and [Image2] is placed into this real world the way a computer-animated bear is placed into a live-action family film: his face and design stay exactly as the references, with realistic dense orange fur, real contact shadow on the wet pavement. Everything around him is real and ordinary.

PLACE: The front of a small, plain supermarket in dull grey and off-white, with a pair of automatic sliding glass doors in the exact centre of the frame and a small plain grey sensor box above them. Through the glass, a dim interior with plain shelves and nobody inside. A wet grey pavement in front. The street is empty: no people, no cars passing. No readable signs, no lettering on the shop front, no words, no logos anywhere.

CHARACTER - THE FOX: One fox, compact small frame, much shorter than the doors, slim build, fluffy orange fur, cream cheeks, heavy-lidded golden yellow eyes, dark charcoal hoodie, dark blue rolled jeans, brown boots, thick orange tail with a cream tip. Grumpy and unimpressed: eyes alert under flat lids, completely bored expression. Never angry, never shocked. Small in the frame, about a fifth of the frame's height. Keep his exact face, fur colour and size the same the whole film. He has exactly two arms and two paws. He moves slowly and calmly.

THE PIGEON: One real grey city pigeon, walking, never flying.

0-2s: The fox walks in slowly from the left along the pavement and stops right in front of the closed glass doors, facing them.

2-5s: The doors stay shut. He stands completely still, waiting, facing the doors.

5-7s: He takes one slow step back, then one slow step forward to the doors again. The doors stay shut.

7-9s: He lifts one paw and waves it slowly up towards the sensor box above the doors. The doors stay shut. He lowers his paw.

9-11s: A real grey pigeon walks in from the right along the pavement and stops beside him at the doors. The glass doors slide open for the pigeon. The pigeon walks inside.

11-12s: The doors slide shut again just as the fox steps forward, and he stops with his nose at the closed glass.

12-15s: Hold. The fox stands at the shut doors, then slowly turns his head and stares flat and bored straight at the camera across the street. Nothing else moves.

SOUND: Real street sound only: a distant car on a wet road, wind, a shopping trolley rattling somewhere far off, the pigeon's feet, the whir of the door motor and the doors sliding open and shut. Long silences. No music, no dialogue, no narration.

NEGATIVE: No cuts, no second shot, no close-up, no camera movement of any kind. The doors never open for the fox; they open only once, for the pigeon. No cartoon or animated set, no painted background, no game look, everything except the fox is real. The pigeon is a real bird, never cartoon, never flying. No people, no cars, nobody inside the shop. No readable words, signs or logos anywhere. No warm or bright colours except the fox. No second fox, no change to his face, no feral animal on all fours, no human hands on the fox, no extra arms or paws, no distorted anatomy, no floating. The fox never kicks or pushes the doors and never goes inside.

What came out, and what to watch for

The model followed nearly every line. It made one shot with no cuts, the camera never moved, the doors stayed shut for him every time and opened only for the pigeon, and the pigeon walked in. A few things differ from the prompt. He stands side-on to the camera, in profile, rather than facing the doors, and the pigeon walks straight to the middle of the doors without stopping beside him. He came out nearer two-fifths of the frame's height than a fifth, which helps, because you can read his face at the end. And the doors stay open for about two seconds while he stands beside them, watching the pigeon. We kept it as it came.

Write the choices, not the name. A director's look is a handful of decisions about the camera, the light, the colour and the sound, and each one can be written as a plain instruction.

Say the thing the joke depends on more than once. If the model's habit runs against your joke, like a door opening for whoever walks up to it, say it in the shot list every time it matters and again in the list of things it must not do.

Fill every second. A still camera shows everything, so script each second with small, plain movements, and say what the street does as well as what he does.

Use colour to point. When everything else is drained, the one strong colour is where the eye goes.

And look before anyone else does. I checked the film for cuts with ffmpeg's scene detection, read the pigeon moment close up at six frames a second, and counted his arms and paws in the last frame.