This is just a theory but I was watching a Popples episode``Popples at the drive in where Billy,Bonnie and the popples go to drive in theater to see two movies. One of them was called E.Z obviously take off on E.T and another movie called Ghostrustlers. Now I would like to thank in my own personal headcannon that Ghostrustlers was the actual movie that was being made about their story in this episode. Think about it, Take Two premiered November 1986 while The Popples episode premiered in February 1987 which would mean the movie would've still be in theaters by then. Plus both Popples and Real Ghostbusters were produced by DIC so it could be way connect them together. 

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