Looking to capitalize on moviegoers in the Halloween spirit — not to mention build anticipation for a potential threequel — Sony will re-release the original “Ghostbusters” in a 500-run domestic engagement, starting with one unspooling on Oct. 13.

Sony plans to play the pic every following Thursday — also for a single screening — ending on Oct. 27.

With scribes Lee Eisenberg and Gene Stupnitsky at work on the script for “Ghostbusters 3,” the re-release could be interpreted as a way to introduce the series to a younger generation, as well as freshen up the property with existing fans.

“Ghostbusters” became a B.O. hit in 1984, cuming $238 million domestically and spurring a 1989 sequel that cumed $112.5 million in the U.S. Sony hopes to appeal to fans of the original by using social-networking sites like Twitter and Facebook to promote the re-release.

“This is a special celebration of the movie, giving the fans a chance to see it on the bigscreen in perfect (2K) digital presentation,” said Sony prexy of worldwide distribution Rory Bruer.

Sony also will relaunch the first “Ghostbusters” in limited releases in Canada and various international markets.

(Jeff Sneider contributed to this report.)