Ghostbusters

Ghostbusters is a science fiction movie about a group of professional ghost hunters.

History
Peter Venkman's quote, "Back off, man. I'm a scientist", is mentioned in Comic Book Guy's list of the "Greatest Quotes of All Time".

Non-canon
A prop from the movie was seen in Comic Book Guy's shop. Whoever touched the prop would be transported into the movie. Carl, Lenny, Moe, and Barney were transported into the movie and they were seen fighting the Stay Puft Marshmallow Man.

Behind the Laughter
 is a real movie.