So-yeong Ha is a pivotal figure in early Korean cinema, leaving an indelible mark through her performances in notable films such as "Immunity" (1932) and "The Robber" (1930). Her role in "Immunity," a film that explores the complexities of societal norms and personal sacrifice, showcases her ability to convey deep emotional resonance, which continues to captivate collectors and cinephiles alike. This film is particularly sought after due to its historical significance and rarity in physical media formats, often fetching impressive prices among collectors. In "The Robber," Ha's dynamic portrayal in a narrative centered on crime and morality further solidified her legacy as a talented actress of her time. Collectors treasure these films not only for their artistic merit but also for their representation of the burgeoning film industry in Korea. With limited releases on VHS and DVD, her work remains a prized addition to any serious collection, making So-yeong Ha a celebrated name among enthusiasts of classic cinema.