“Three parapsychologists lose their university funding” sounds like the beginning of a terrible joke, rather than a premise for one of the most successful films of the 1980s. Nonetheless, this is how the story of Ghostbusters (1984) begins, with a trio of unlikely professors.

Peter Venkman (Bill Murray) cares more about flirting than research, Ray Stantz (Dan Aykroyd) bounces around like an excitable puppy, while nerdy Egon Spengler’s (Harold Ramis) hobby is to “collect spores, moulds and fungus”. It’s no wonder the credibility of their research is called into question, after they attest to seeing a real ghost at the New York Public Library.

Turfed out of the hallowed halls of academia, the trio remain steadfast in their pursuit of ghosts, establishing “Ghostbusters” – a paranormal investigation outfit – in a disused New York firehouse. They hire a fourth member, Winston Zeddemore (Ernie Hudson), a commonsense everyman, and develop a series of nuclear-powered ghost-catching equipment.

The Ghostbusters vow to investigate reports of spooky encounters and, most importantly, “to believe you”.

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Ghostbusters ticked a heap of boxes in........

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