This: the 1984 film

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Ghostbusters (titled on-screen as Ghost Busters) is a 1984 fantasy-comedy film about three eccentric New York City parapsychologists-turned-ghost exterminators. The film was released in the United States on June 8, 1984. It was produced and directed by Ivan Reitman and stars Bill Murray, Dan Aykroyd, Harold Ramis, Rick Moranis, Sigourney Weaver, Annie Potts, and Ernie Hudson. The film's original release grossed almost US$230 million in the U.S. and $50 million abroad during its theatrical run, making it the biggest grossing film of 1984.Boxofficemojo: Box office statistics for 1984

It was followed by a sequel, Ghostbusters II (1989), and two animated television series, The Real Ghostbusters (later renamed Slimer! And the Real Ghostbusters) and Extreme Ghostbusters. Ramis, who co-wrote the first two films, has confirmed that a script for a potential third film is being developed by Gene Stupnitsky and Lee Eisenberg, the writing team best known for their work on Curb Your Enthusiasm and the American version of The Office. Judd Apatow (who is co-producing the upcoming Ramis-directed The Year One) is also slated to be involved on some level. In addition, the original films' four main castmembers may have minor on-screen roles.

In 2000, readers of Total Film magazine voted Ghostbusters the 44th greatest comedy film of all time. The American Film Institute ranked it 28th in its list of the top 100 comedies of all time (in their "AFI's 100 Years... 100 Laughs" list). In 2005, IGN voted Ghostbusters the greatest comedy ever. In 2006, Bravo ranked Ghostbusters 76 on their "100 Funniest Movies" list.

Plot

Three misfit parapsychology research professors specializing in research on ghosts, Drs. Egon Spengler (Harold Ramis), Raymond "Ray" Stantz (Dan Aykroyd), and Peter Venkman (Bill Murray), are expelled from Columbia University after their research grants are terminated. To maintain their livelihood, they establish "Ghostbusters", an organization described by Venkman as a "professional paranormal investigations and eliminations" service, using an old firehouse as their headquarters, a 1959 Cadillac Miller-Meteor Ambulance dubbed "Ecto-1" as transport, and one Janine Melnitz (Annie Potts) as a receptionist. The cost of establishing and maintaining the initially unsuccessful business leads them to the brink of financial ruin, before they are hired by the staff of a hotel plagued by a ghost (whom, in The Real Ghostbusters, is named "Slimer" by Ray). They capture this ghost successfully, using their nuclear-powered "proton packs" to force it into a small holding trap for later transfer to a containment grid in the firehouse. Following their first successful endeavor, the Ghostbusters suddenly find themselves overwhelmed by calls from prospective clients, to the point that they hire a fourth member Winston Zeddemore (Ernie Hudson). Zeddmore ultimately comes to believe that the increase of ghostly activity is building up towards a single grand-scale paranormal event that will result in the apocalypse, or rather the biblical "Judgement Day", and is later proven to be correct.