The Old and New Ghostbusters Unite!

It was Ghostbusters Day on June 8, the anniversary of the original movie's 1984 premiere. The 32-year-old movie was screened in 800 cinema screens across the United States, celebrating the franchise and building the hype for an upcoming reboot featuring an all-female cast.

Fans of the original movies were delighted when, on this special day, the old cast—Bill Murray, Dan Aykroyd, Ernie Hudson and Annie Potts—were reunited in a selfie that includes Melissa McCarthy, Kristen Wiig, Kate McKinnon and Leslie Jones, who will star in the reboot.

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The new Ghostbusters movie is about a pair of authors who have written a book claiming that ghosts are real. Along with a nuclear engineer and a subway worker, the two team up to save the world from a powerful demon that can possess humans.

Ghostbusters is slated to be released next month. If you haven't already, check out the trailer: