Trivia: Director Ivan Reitman performed the demonic voice of Dana/Zuul in the bedroom scene with Peter Venkman.

Trivia: When Peter Venkman mentions the time Egon Spengler tried to drill a hole in his head, Egon replies, "That would have worked if you hadn't stopped me". This line was ad-libbed by Harold Ramis.

Trivia: Casey Kasem does a voice-over cameo as himself on his radio show after the Ghostbusters become famous. The ditsy blonde woman that Louis dances with at his party is played by Casey's wife, Jean Kasem.


Trivia: The role of Louis Tully was originally written and storyboarded for John Candy.

Trivia: Writer Dan Aykroyd originally wrote the role of Venkman for John Belushi, but approached Murray after Belushi's death. Belushi still appears in the movie (of sorts): the body movement of the Slimer Ghost were based on his movements.

Trivia: The brief dream-scene in which Ray appears to receive oral sex from an attractive female spirit was originally part of a much larger sequence, but it was removed for both time and ratings reasons.

Trivia: The party scene at Louis Tully's apartment was entirely improvised.

Trivia: The Ghostbusters Fire House is located at North Moore, & Varick St. in New York, NY.

Trivia: Two points in the movie where you can see Staypuft Marshmallows: the first is next to the eggs on Dana's worktop when the eggs start to cook, and the second is when the beam of light is coming out of the Ghostbuster's house, there is a wide shot of it and on the left of the screen there is a billboard advertising Staypuft Marshmallows.

Trivia: The "marshmallow" at the end of the movie is shaving cream.

Trivia: Originally, Gozer was supposed to be a man and the top choices for the character were David Bowie (the decision to get him was made too late to hire a famous actor) and Paul Ruebens (and he was supposed to appear in a business suit).

Trivia: After the librarian signs out in the downstairs section of the New York Public Library, she passes the card catalogue shelves which open behind her and suddenly hurl their contents into the air. To achieve this effect, technicians were standing behind the shelves to push them out and then used a copper pipe to blow out the contents.

Trivia: The original title of Ghostbusters was Ghost Smashers.

Trivia: Venkman mentions the time Egon "tried to drill a hole in his head". This is a reference to Trepanation, a procedure alleged to increase psychic abilities among other things.

Grumpy Scot

Trivia: When Peter is in Dana's apartment, she tells him "You're more like a game-show host". This line was improvised by Sigourney Weaver. The original line in the script was "You're more like a used-car salesman."

Trivia: Harold Ramis states in the DVD commentary that the "experiment" that Venkman conducts at the beginning of the film is inspired in part by the Milgram Experiment. In the Milgram Experiment, people were told that they would be giving a person increasingly powerful electric shock whenever the person incorrectly answered a question from a list that was read off. (The reality was that the person being "shocked" was an actor and that the generator was fake; the experiment was a test of whether the subject would give a person lethal shocks just because an experimenter was telling them to do so.)

Trivia: The opening couple of shots were actually shot at New York Public Library. The crew could only film until 10am for one day. All of the scenes in the backroom of the library were filmed at the Los Angeles Public Library.

Trivia: The role of Winston Zeddemore was originally written for Eddie Murphy.

Trivia: When Spengler, Venkman and Stantz are in the basement of the New York Public Library, the bookcase falls over, prompting Venkman to ask Stantz if this has ever happened before. The whole exchange, including the bookcase falling over, was not scripted. It is thought that the bookcase fell because some crewmen accidentally bumped into it, and Bill Murray ad-libbed his lines. Producer/director Ivan Reitman decided to leave it in the movie because it added to the supernatural qualities of the film.

Trivia: In the opening scene in New York Public Library, the librarian walks down the reading room with her trolley full of books and a man appears and walks across the screen. This man is the film's associate producer, Joe Medjuck.

Trivia: 1980s pop star Debbie Gibson has a cameo as the girl with the pink bow in her hair, celebrating her birthday at the Tavern on the Green.

Trivia: The original script by Dan Aykroyd took place in the future, and revolved around just one of many different "Ghost Smasher" teams operating throughout the galaxy. (As the original title was "Ghost Smashers.") The "Stay-Puft" Marshmallow-Man appeared by the 30-minute mark of the script and was just one of numerous giant threats the team would face. The budget was projected at nearly $300 million (in 1984 dollars, unadjusted for inflation), so Harold Ramis was brought in to help rewrite the script to make it more manageable for studios. (Hence, it was relocated to modern times, and the large set-pieces were scaled back).

Trivia: After the containment unit explodes, adult film star Ron Jeremy can be seen among the crowd witnessing the chaos, on the left side of the screen behind a blue police barrier.

Trivia: The Ghostbusters theme, "composed" by Ray Parker Jr., was directly ripped off from the song "I Want A New Drug" by Huey Lewis and the News. In fact, Huey Lewis sued Ray Parker for intellectual property theft (settled out of court). Premiere Magazine later featured an article in which the film makers admitted to using the song "I Want a New Drug" as temporary background music in many scenes. They said that they made an offer to Huey Lewis to write the main theme for the movie, but Huey Lewis declined. The filmmakers then provided Ray Parker Jr. with finished film footage (including the Huey Lewis song in the background) to aid Ray Parker in writing an original theme song, which apparently he couldn't do.

Charles Austin Miller
Upvote valid corrections to help move entries into the corrections section.

Suggested correction: This is incorrect. Ray Parker Jr paid a fee to Huey Lewis to sample "I Want a New Drug." Lewis sued Parker but settled out of court. Years later, Parker sued Lewis because Lewis broke a confidentiality agreement by speaking about the out of court settlement during an interview.

Ray Parker Jr, himself (appearing on the Adam Corolla show in 2015), claimed that he had never met Huey Louis, did not personally know him, and that he did not know Huey Louis was the first musician approached to compose the Ghostbusters theme song. But Parker's statement must be a deliberate falsehood. After Huey Lewis turned down the theme song offer, it was Ghostbuster director Ivan Reitman who provided "samples" of movie footage containing the Huey Lewis song "I Want a New Drug" (as background music) to Ray Parker. Parker then produced a direct knock-off the Huey Lewis music. No "fee" was paid to Huey Louis for the direct use of his music until after Lewis sued for intellectual property theft. Ray Parker Jr additionally claimed that he didn't and still doesn't know any of the details of the original lawsuit; but that, too, is a falsehood. The settlement paid to Huey Louis was undisclosed but quite sizable, so much so that attorneys for Ivan Reitman and Ray Parker requested a gag order on the settlement (to avoid the perception of an admission of guilt). Ray Parker was allowed to keep the copyright on the Ghostbusters theme, but the fact remains that Parker (AND Ivan Reitman) paid dearly for knowingly ripping off the Huey Lewis song.

Charles Austin Miller

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