As always notices of corrections, duplicates (other than San Wing-Gwan in this case) and other problems accepted with thanks.

http://hkmdb.com/db/movies/images.mhtml?id=4695&display_set=eng

Did 4 IDs

http://hkmdb.com/db/movies/image_detail ... ay_set=eng

could be the young Gam Kei-Chu

http://hkmdb.com/db/movies/image_detail ... ay_set=eng

looks familiar, but I don't remember from which movie