The lure of 3-D cinema has never been stronger. The format is a consistent crowd-puller that attracts a premium price from cinemagoers. As a result Hollywood is preparing to spend big money on rolling out 3-D compatible digital projection technology at theatres across North America (read Matthew Garrahan’s analysis here). In this interactive graphic we take you through the history of the technique, show you the latest 3-D cinema setups and crunch some statistics on the industry.