Marks the film debut of the City-State's then newly christened mass transit system where several MTR terminals and platform locations are featured. Hong Kong's state-of-the-art MTR system conduits span over 80 kilometers and keeps over 2 million daily commuters on the move daily. The English title/phrase for 'Yuen Fun' refers to the metaphor for destiny for single Hong Kong youths meeting their true loves while "Behind The Yellow Line".