Cheung Sum is a notable figure in the realm of Hong Kong cinema, particularly recognized for his work in the horror genre during the early '80s. His 1981 film, *A Bride's Nightmare*, stands out as a cult classic, blending traditional ghost folklore with the unique stylistic flair of the era. This film has garnered a dedicated following among collectors, not only for its eerie atmosphere and engaging narrative but also for its rarity on physical media, making it a prized possession for fans of Asian horror. Collectors are drawn to Cheung's work due to his ability to capture the zeitgeist of Hong Kong cinema's golden age, where horror films often intertwined with dramatic elements. *A Bride's Nightmare* is particularly sought after on VHS and DVD formats, with limited releases enhancing its desirability. As the home video market continues to evolve, Cheung Sum's contributions remain a significant chapter in film history, appealing to those who appreciate the nuances of regional cinema and the artistry of physical media preservation.