Detectives from another era grab attention

Although the film treats these serious historical themes with a touch of caricature, its subtext regarding racial discrimination remains "significant", according to Chamchoum.

For Chow, the role of Bai Xuanling was a long-awaited opportunity. Speaking to Chinese media, the actor said that he had been offered a similar role in the 1990s when he first arrived in Hollywood seeking opportunities. The late director King Hu had given him the script for The Battle of Ono, a film about Chinese laborers building American railways during the late Qing Dynasty (1644-1911). However, Hu died before the project could be realized.

Three decades later, Chow finally found his dream role in Detective Chinatown 1900. The film dramatically portrays the real-life injustices suffered by Chinese immigrants through its fictitious plot in which San Francisco elites fabricate a "Chinese Jack the Ripper" to justify dismantling Chinatown.

One of the most powerful scenes in the film has Chow's character Bai delivering a passionate courtroom monologue in English. Facing an all-American jury, he exposes the discrimination endured by Chinese immigrants, despite their critical role in the growth of the US. The moment has been widely discussed for its emotional impact and historical significance.