Yes, there's still a drive-in around here. Two, actually. Both locations (in Scottsdale and Glendale) are operated by the same company and both admit children under 11 for free (yes, 16-passenger vans are allowed). If that weren't enough, both drive-ins play double features for only $6.25 per adult.
Movie buffs who don't mind a beat-up bathroom and a nearly-abandoned concession stand can save a lot of dough and enjoy the Arizona weather at either drive-in. The screens work great. So does the audio, which feeds through the car radio.
Simply find a nice parking spot (on the unpaved desert floor) and tune the radio to the appropriate station. Then settle into a comfortable seat (lawn chairs and pickup beds are popular for those whose vehicles aren't accommodating) and enjoy the show.
Admission is only $6.25 per adult for back-to-back double features, which certainly beats $10 per person for a single movie at the conventional theater. Drive-in moviegoers can also save money on snacks by bringing coolers of beer, soda, or snacks in their vehicles.
Heck, you could even set up a grill in the bed of your truck, if you're so inclined. If the thought of someone grilling under the stars while you watch a movie in the Arizona desert disturbs you, then please just stay away.