Who knew the legacy movie theater industry would be among the largest-scale adopters of cryptos right now? Source: Shutterstock Well, that appears to be the case. Following the high-profile move of AMC Entertainment (NYSE:AMC) to allow patrons to pay for tickets and concessions using cryptocurrencies, Regal Cinemas, a wholly owned subsidiary of Cineworld (OTCMKTS:CNNWF) is stepping up…