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'Ghostbusters 3' Gets Off To A Slimy Start - Get The Gooey Details

That's Psychomagnotheric Slime - not to be confused with the River of Ooze.

"Someone blows their nose and you want to keep it?"

That was Venkman's snarl-lipped reaction to his first encounter with ectoplasmic residue in the 1984 original, but it looks like director Paul Feig ain't afraid of no Ghost Slime.

"Ghostbusters 3" is gearing up for production to start on Thursday (June 18) in Boston, Massachusetts, Feig confirmed on his Twitter page, alongside a picture of himself with an ooey gooey gob of the green stuff.

"And ... action!" he wrote Wednesday (June 17) afternoon, adding the telling hashtag "#slimetimestartstomorrow."

Green goo means go! Lights, camera, apparition!

Just in time, some new details about the long-awaited sequel are starting to ooze out for us to collect in the ecto trap.

According to The Boston Herald, Melissa McCarthy and Kristen Wiig's characters in the all-female comedy film are a couple of unpopular writers who totally believe in things that go bump in the night and pen a book on the scary subject.

But the totally untouted text comes back to haunt Wiig's character later in life when she's nabbed a cushy job teaching at Columbia University -- yes, the story takes place in NYC despite the New England shooting locale. Then, Manhattan becomes a hub for the floating dead, and, well, that's when her ghost stories come into good use.

And speaking of old believers, apparently Feig is still holding out hope -- but probably not his breath -- for some familiar face cameos from Dan Aykroyd and/or Bill Murray. Meanwhile, negotiations weren't necessary for Slimer to make a gelatinous comeback, so reportedly fans can expect to see the pokable poltergeist giving everyone his goofiest ghoul grin.