Tam Kit-Man (Debbie Tam) was born in Hong Kong and grew up in Tuen Mun, New Territories. At the age of 13, she was invited by director Lawrence Lau (Lau Kwok-Cheong) to audition for a film on the street. Out of hundreds of people auditioning at Milkyway Image, she won a film acting contract and played the role of Cookie in Lawrence Lau's film "Spacked Out"(2000) . Since the director shot without a script, Debbie had to improvise on set. Debbie provided real events from her high school years to the director during the early stages of filming, and her information was used in the film. The director later added other plot lines for her to perform, making her the female lead in "Spacked Out". Her film career began and she was nominated for Best New Performer at the Taipei Golden Horse Film Festival. She later participated in Clarence Ford's film "Queen of Kowloon" (2000) and Fruit Chan's film "Hollywood Hong Kong" (2001), but then faded from on-screen performances. In 2023, due to the digital restoration of "Spacked Out", it became one of the Opening Films at the 17th Fresh Wave International Short Film Festival in Hong Kong and once again became a hot topic. Debbie appeared in public again 23 years later, attending a post-screening talk with other actors and reminiscing about the film with fans.
