Hong Kong film culture at the end of the 20th century was as magnificent and vital as the Iguazu Falls in the 1997 film Happy Together, directed by Wong Kar-wai. At that time, Hong Kong's popular culture, as represented by television (TVB), film and music, broadened the spiritual world of the people living in the southernmost part of China, and at the same time, provided the ground for each individual to develop a unique and natural temperament. This is an elegy for Hong Kong cinema whose glory has passed. I am trying to explore the common memories of locals of different ages by combining film scene reenactment with documentary.