The Ghostbusters return for Ghostbusters: Frozen Empire, bringing in a cast old and new to bust those pesky New York City ghosts that just don’t know when to quit. Fans of Ghostbusters can expect a fun ride, with plenty of easter eggs and references that will set off their PKE meters. Ghostbusters has been around since the 80s, so it’s no surprise that the 4th film in the series has plenty of callbacks harking to decades prior.