The Peking Medallion - Robert Stack (1967) - Ching Chun Koon, Tuen Mun

The occupants of the car that was following Stack along Lai Chi Kok Road are members of a local Triad (led by Nancy Kwan) who also want the medallion. So they inite Stack to their HQ on the pretext of him doing a photo shoot for their boss. The HQ turns out to be Ching Chun Koon in Tuen Mun, quite a popular location on this blog already. The circular moon gate is still around and you can see the more famous ornate archway (Pai Lau) in the gap through the moon gate.