Danger: Diabolik (1968)
Diabolik appears in one of the spouse's reveries
The USA title, Danger: Diabolik, is featured on a Times Square theatre marquee.
at the end of both films, the antagonist is defeated and covered by molten gold.
the film is discussed in this feature
Diabolik is the featured film in this MST3K episode.
DVD release reviewed + footage used