The Paranormal Activity franchise dominated the 2010s and helped rejuvenate found footage horror in a way that hadn’t been seen since The Blair Witch Project. The franchise has grossed nearly $900 million, and it will likely break one billion dollars upon the release of 2027’s Paranormal Activity 8. It’s a franchise that’s become permanently entrenched in pop culture and is largely analogous to modern ghost stories. They’re films that make a lot…