I was listening to a radio broadcast the other night, I think it was my local NPR station, and they were reporting on the big expense for drive-in businesses to convert from celluloid to digital (I wish I had the link so you could hear it). While some might believe that the drive-in is extinct, some communities still enjoy driving their cars to places where they're given an audio speaker to listen to the movie that's on view on the giant screen in front of them beneath the big sky.
Hollywood, apparently, is stepping up and helping to defray the cost of adding digital projectors and broadband connections for the distribution and exhibition of their products, as it did for some of the traditional film theaters. For many of these drive-in theaters, the digital revolution might be what keeps them alive.
Celluloid film will eventually be an antiquated idea, if it hasn't become so already. The language of film will continue to have hold-over words and phrases that no longer apply to the modern way of showing movies, but they will still remain in our lexicon (such as "cut," "roll," and "film" itself).
How will the experience of watching movies (indoors or out) change as we switch from the old way to the new? Those who love going to the drive-in at least might be able to enjoy a crisper image (and the fact that drive-ins still exist at all), even if a bit of that nostalgic magic found in celluloid might eventually be gone.