http://www.hkmdb.com/db/movies/view.mhtml?id=9471&complete_credits=1&display_set=eng

The director should be: Cheung Chi Kwok 張志國 (not in db)

"Englishized" prod. company.
Added original title, producers, presenters, dir., assist. dir., phot., mus., editor and 3 names more in the cast of that "rare" film!!!

but I did not find the writer...