Quoted from valgalder:Still confused why it's Ghost Busters and not Ghostbusters.
Quoted from Betelgeuse:Also, as someone else mentioned, both Ghostbusters and Ghost Busters are correct for the title card. I got this a lot with my custom GB machine, but it's it's displayed both ways even in the movie.
In addition, the two-word title stack was used when branding other GB merch like cereal & trading cards.