The art of film-making has undergone a massive transformation since the time of its inception. Not all that long ago, viewers were famously jumping out of the way of an oncoming train- dazzled by the ‘high-tech’ innovation of moving pictures. It’s a little harder these days to get such a reaction from cynical crowds who have ‘been there, done that’ a thousand times before. So what can film-makers and cinema bosses do to keep their screens packed with punters?