"Ghostbusters" has officially begun production in Boston this week, and local media has the scoop on some new details about the latest entry in the franchise.

As stars Melissa McCarthy, Kristen Wiig, Leslie Jones, and Kate McKinnon get ready to shoot their scenes, the Boston Herald reports that they have some intel on a few key plot points. The Herald writes:

Wiig and McCarthy play a pair of unheralded authors who write a book positing that ghosts are real. Flash forward a few years and Wiig lands a prestigious teaching position at Columbia U. (Like the original, the story takes place in New York City, even though it's being shot in Boston.) Which is pretty sweet, until her book resurfaces and she is laughed out of academia.

Wiig reunites with McCarthy and the other two proton pack-packing phantom wranglers, and she gets some sweet revenge when ghosts invade Manhattan and she and her team have to save the world.

That coincides with previous reports that outline the characters in the flick as (per The Dissolve) "Erin Gabler, an academic on the tenure track at Columbia; Abby Bergman, who pursues ghosts for a living, with a focus on parapsychology; Jillian, Abby's ghost-hunting partner; and Patty, an MTA employee who comes across the main ghost." So it seems Wiig will play Erin and McCarthy will play Abby; we're betting McKinnon is Jillian and Jones is Patty, though of course, no official casting breakdown has been released just yet.

Other juicy bits from the Herald's report include the fact that green ghost Slimer will return (something director Paul Feig alluded to on Twitter when he announced the beginning of filming), and that filmmakers are desperately trying to work out a deal for original 'busters Dan Aykroyd and Bill Murray to cameo. "They are negotiating," a source told the Herald, though the notoriously difficult-to-reach Murray has so far been elusive. (Considering Murray was an early champion of McCarthy and Wiig joining the "Ghostbusters" reboot, we think it's only right that he join in on the fun, too.)

"Ghostbusters" is currently shooting in Boston, and co-stars Cecily Strong and Chris Hemsworth. It's due in theaters on July 22, 2016.

[via: Boston Herald, h/t The Dissolve]