For two decades, New York City cinephiles had access to a treasure trove of rare and esoteric films through Kim's Video. In 2008, facing a changing industry, Mr. Kim offered to give away his collection provided that it stay intact and be available to Kim's Video members. The small Italian village of Salemi, Sicily became home to the archive. But after the initial publicity faded, so too did any sign of the collection. This filmmaker sets off on a quest to find a legendary lost video collection of 55,000 movies in Sicily.