To have an effective drive-in, it had to be on at least 15 acres of land. Economically speaking, it became more practical for owners to close their drive-ins in order to sell their land to developers to build malls or multi-building complexes.

A drive-in theater or drive-in cinema is a form of cinema structure consisting of a large outdoor movie screen, a projection booth, a concession stand, and a large parking area for automobiles. Within this enclosed area, customers can view movies from the privacy and comfort of their cars.

In the late 1950s, there were 4,000 drive-in movie theaters in the United States. Today, there are only about 300 left in operation.

"Drive-ins started to really take off in the '50s," Kopp said. "They offered family entertainment. People could sit in their cars, they could bring their babies, they could smoke. Drive-ins offered more flexibility than indoor theaters."