I'm from a country that doesn't live in cars, can someone explain the drive-in to me? Does everybody have a cabriolet, or how do you see the screen at all? Is it visible through the windshield? How about the audio?
There’s typically a large outdoor projection screen a few stories tall, and each car usually gets a set of speakers that rests on their front side windows. Although these days I bet more are moving to Bluetooth or something like that.
Yes, or you can bring lawn chairs and sit outside next to your car instead. Or if you have a pickup truck, you can park the truck backwards and lounge in the truck bed.
To add on, the parking lot is intentionally made to have rows of (small) hills, so each car will be pointed up towards the screen. Taller vehicles are restricted to the back row, trucks will usually back in and people sit in the bed to watch. Vans (and any remaining station wagons) will also often back in and sit in the back with the hatch open.