Jude Poyer, Danial Donai and Daniel Whyte
The church interior, supposedly within the Parsee Cemetery, was filmed in a small film studio called 嘉龍片場 (Ga Lung Pin Cheung) or Clarence Studios to give its English name. I had never heard of this place but Jude tells me he filmed various TV commercials there when he was based in HK as well as a few scenes from the The Medallion.
Anyway, if you're a film fan and ever want to go over and have a nose it is along the Kam Tin Road near the Shek Kong airfield. You can't miss it because it has a massive great big dinosaur skull at the entrance. Anyway, once again many thanks to Jude.