The movie's MacGuffin was an ancient lost treasure relic with supernatural powers called the ''Golden Cobra''.
One of the first 'Raiders of the Lost Ark' (1981) inspired pictures being first released just the following year in 1982.
The year the movie was set was 1945 with it starting about six months before the end of World War II.
The name of the savage primitive Filippino tribe was the ''Awoks''.
A number of the cast and crew re-teamed about a couple of years later for another 'Indiana Jones' inspired adventure - 'The Ark of the Sun God' (aka 'I sopravvissuti della città morta') (1984). These included director Antonio Margheriti, actors David Warbeck, John Steiner, Giancarlo Maestri and Luciano Pigozzi, cinematographer Sandro Mancori, editor Alberto Moriani, assistant director Edoardo Margheriti and voice/dubbing editor Nick Alexander.