When Jane first heard about Memory and Imagination, a rare 1990s documentary about the Library of Congress, she was intrigued. But the Canadian writer in her 30s couldn’t find the movie anywhere — not on streaming services, not on YouTube, not on pirate sites — and her intrigue turned into obsession. Worried it might become a lost film, Jane decided to scour auction sites, search every library catalog she could think of, and even enlist some of her online acquaintances to find a copy.