They are usually around on friday or saturday. Basically, they pick you up in a oldschool school bus equipped with movie projector, and comfortable cushions/chairs. You can bring your own drinks and etc. They drive around the city, while you watch the movie. Great way to throw parties and etc. If you get easily carsick — I don’t recommend it. sometimes, power generator goes down inside the bus… It’s really about getting drunk inside the bus and watching some kickass movies.