splatterbabble - 2009-10-04 Is this the original language? If so, is it still dubbed?
Riskbreaker - 2009-10-04 The default audio track for any HK movie is cantonese, but yes, it's still a dub. Then it gets dubbed to mandarin for mainland china.
dododge - 2009-10-04 The way I've heard it, most of these films are shot without sound (for cost reasons if nothing else) and may actually have a mix of Cantonese and Mandarin on-set depending on the actors. They then get dubbed completely into both languages for release.
See also: any number of American-Italian co-productions from the 60s and 70s.