Investors held out high hopes for Imax China when it listed in Hong Kong in 2015, betting the Chinese offshoot of Canada's Imax(IMAX.N) was well placed to profit from a box office that was booming at the time. Investors believed that growing demand from increasingly discerning Chinese would further fuel demand for Imax's premium big-screen viewing experience. Such hopes sent the stock from its listing price of HK$31 to as much as HK$60. But reality quickly caught up with the company as China's box office ra ...