I am old enough to remember that when they first started doing promos for this they didn’t drop any info or big marketing.
They did these real short TV spots with the Ghostbusters logo during prime time and other major shows with absolutely zero background. Only thing that was on it was the message ‘Coming to save the world’
I remember all the buzz at the time in school because everyone was chatting about it trying to figure out what it was about. No internet or places to read up on aside from the usual movie magazines at the grocery stores so everyone was all amped by the time the actual full trailer dropped and ready to beat the door down when it arrived in theaters.