Crossing Hennessy - Jacky Cheung (2010) - Big D Trading, Mongkok

The shop run by Loy's family was a real business and is still in operation. However, rather than being located in Wanchai as per the film's story, the physical shop location is over in Mongkok - on the 12th floor of "Ginza Plaza" on Sai Yeung Choi Street South. The company has a website here: https://bigd.hk/.