The smell gets there first. On a gray morning in March 2023, in a cold room two floors beneath the Corran Film Archive, Celia Amankwah eased the lid off a rusted can labeled, in grease pencil, SR 23, and the air filled with the sour tang of a salad left out overnight. Inside, 400 feet of 16mm film had shrunk hard around its core and gone as stiff as a roof tile. Its edges had buckled into a shallow wave. When Amankwah tipped the roll toward the lamp, a fine white powder slid off it onto her gloves, as if someone had salted it.

“That one was going,” she told me this summer, in the voice a vet uses for a dog that came in too late. “Another couple of winters and it would have been a hockey puck.”

Loading the rest of the article…