The projector is a 1982 Christie, and it needs about twenty minutes and a prayer to start on cold nights. On the wall behind the booth hangs a handwritten list of every splice it has survived — the paper is almost the same colour as the film stock it describes. Nobody here calls what they do restoration. They call it keeping the lights on.

The cinema opened in 1958 as a neighbourhood house, one of four within a mile. It showed double features for a quarter, survived the multiplex era by converting to repertory screenings, and has spent the past decade being politely told it is finished. Twice a year a developer walks the block with a rendering of a twelve-storey apartment building and a promise to keep a screening room on the ground floor. The owner, Rosa Delgado, has twice declined.

Somewhere between the second reel and the third, the room stops being a business and becomes a congregation.

On a Friday night in July the house ran its usual programme: a French new-wave classic at seven, a midnight screening of a film nobody in the office has heard of. Both were near-sold out. The audience was young enough to be Rosa\u2019s grandchildren and old enough to remember the first run. At 1:45 the projector was wound down and the lights came up slowly, the way they always do.

Rosa says she does not think of herself as a preservationist. The seats are original, the carpet is original, the smell is original. What she preserves, she insists, is the agreement a room makes with a dark screen and a hundred strangers — that for two hours nobody checks their phone, and the whole building leans forward together.

The marquee still reads in hand-painted letters, changed by ladder every week. This week it says: ONE BUILDING. NO APARTMENTS. TWO SHOWS A NIGHT.