COMING SOON: The Summer When You’re Expected to Save Drive-In Movie Theaters. “Later this year, movie studios are scheduled to stop distributing films in old-fashioned 35-millimeter format. Everything will go digital, which is fine for the vast majority of indoor theaters that have already upgraded to digital projectors. It’s a different story with drive-ins, however, many of which find themselves in need of handouts to pay for the upgrade. Care to cough up a $100 donation on top of the cost of popcorn?”