18. Ghostbusters (1984)
Director: Ivan Reitman
Writer: Dan Aykroyd and Harold Ramis
Stars: Bill Murray, Dan Aykroyd, Harold Ramis, Sigourney Weaver, Rick Moranis, Ernie Hudson
Quotable: "Ray, when someone asks you if you're a god, you say 'Yes!'"
Fun Fact: The roles of Louis Tully (Moranis) and Peter Venkman (Murray) were originally intended for John Candy and John Belushi, respectively.
In 1984, Ghostbusters was the best thing to happen to underage horror fans since Scooby Doo. That '80s babies break into cold sweats any time news breaks about the long-gestating and still indefinite Ghostbusters 3 is a testament to this all-star classic's greatness.
Never skimping on the supernatural, Ghostbusters dispenses big-budget special effects (that admittedly look hella cheesy today), well-timed and harmless scares (the Slimer scene), and lively banter among the three main 'Busters (Murray, Ramis, and Aykroyd). Like The Goonies, Ghostbusters is one of those formative 1980s treasures for anyone who came of age during the Reagan era.