This is really a cool way to experience those cheesy, 'so bad they're good' b-movies of yesteryear. It's the next best thing to using a time machine to go back to the old drive-in movies.
At the main menu of the dvd you can go to the ticket booth icon, and this starts the show. (You can jump to any of the features if you like, but this Ticket Booth option is the best way to do it.) Once you've started things via the ticket booth, you will then enjoy (among other things): The Star Spangled Banner, adverts for concession treats, a couple of old cartoons, reminders from theater management about not talking during the film, and a b-movie double feature.
It gets better. The coolest part is that there's an alternate audio track you can select during the films that contain the 'speaker' sound of the film as if you were sitting in a car, plus sound effects of people walking past your car on the gravel, a little comment here and there by someone in the next car, crickets, and other 'natural' sounds. It is a hoot. (And you can always just change the sound to the regular movie audio without these extra effects.)
The picture quality is mediocre at best, but the nostalgia makes it totally worthwhile. Yes, the whole experience is very kitsch and campy, but it's like capturing something from the past. It's the next best thing to being there.