In a week or so, industry professionals from around the world will gather at Caesar’s Palace in Las Vegas for this year’s CinemaCon, the annual convention of the National Association of Theatre Owners. There, from April 1-4, they will discuss the latest issues, trends and technologies in motion picture distribution and exhibition. For many of them, new technology will be the focus of their attention. This year’s technology conversations seem certain to include three acronyms in particular: HFR, LED and HDR. Chances are, technology centered on one of these will earn a Catalyst Award. But there are always surprises at CinemaCon.