It's a bit difficult finding interior photographs at this temple, but the few I found do seem to confirm that they filmed inside, but to be 100% I will need to make a return trip. However, the exterior shots are definitely there as you can see below.
And to finish off, here is the opening shots of the sequence that was actually taken at the main entrance to the Chinese Gardens at Jurong Lake in Singapore. I'm not sure if this is stock footage or shot specifically for the film, I suspect the former but you never know.
Not Hong Kong!