The title, Golden Triangle, refers to the (in)famous area where the borders of three countries, Thailand, Myanmar and Laos, meet, which used to be the area where a lot of opium-producing poppies were grown. Now it has become a very famous tourist attraction where an Opium Museum can be visited to remain people of its past.
The film was shot in 1975-76 and dubbed into English in 1976 using members of Bangkok Community Theatre.