From time to time, residents of the little town of Farmington, Maine, gather to attend events that range from a craft fair and flea market to a band concert and a Catholic Mass. At a site in Fort Lauderdale, Florida, the attractions include an arcade, car museum, and swap shop. Rather than being seated in an elegant concert hall in New York’s Lincoln Center, guests attending last year’s prestigious New York Film Festival watched the entrants while seated in their family cars. These places and performances may seem to be disparate, yet they have one thing in common: their location at drive-in movie theaters. Once scattered about the country, these throwbacks to the past are today few and far between. Yet they still exist and have much to offer those who seek them out near where they live or when traveling farther away from home. As the number of venues …