It was a mistake not to attend CinemaCon in Las Vegas last week, in particular for two discussions we missed, which may well define the future of both the theatrical industry as a whole, and give VR a way forward. Note to self, go next year. The two subjects were “How do studios replace their ailing DVD revenues?” and “How does a movie theatre deal with VR?” It is a trade secret that cinemas in the US and Europe have barely been holding their own over the past five years – they are managing to just about stand still by playing more movies per week, as each sitting for any given movie is smaller than an equivalent in prior years.…