 Movies are also commonly shown on airliners in flight, using large screens in each cabin or smaller screens for each group of rows or each individual seat; the airline company sometimes charges a fee for the headphones needed to hear the movie's sound.In a similar fashion, movies are sometimes also shown on trains, such as the Auto Train.The smallest purpose-built cinema is the Cabiria Cine-Cafe which measures 24 m² (258.3 ft²) and has a seating capacity of 18.