Ghostbusters  (1984, U.S.A.)

When kooky, spooky college professors Peter Venkman (Bill Murray), Ray Stantz (Dan Aykroyd) and Egon Spengler (Harold Ramis) lose their university jobs, they decide to go freelance, de-haunting New York City with a new ghost removal service.  As soon as they open their doors, their first order of business becomes saving beautiful cellist Dana Barrett (Sigourney Weaver) and nerdy Louis Tully (Rick Moraines), who’ve inadvertently opened the gates of hell … right in their own apartment building!