You know how some of the Virgin Atlantic flights have screens that are like individual DVD players and you can start a film whenever you want, pause it etc., but some of them show the films 'on loop' and you can only watch them when they're on and can't pause them? Well is there any way to choose which you get when booking your flight? As far as I understand, it depends on the aircraft type and the aircraft aren't allocated until much nearer the time, so I'm presuming you can't choose :(