8 Must-Watch Horror Movies About Cults to Add to Your Watchlist This SummerWhat is it about the summer that makes me want to watch horror movies about cults, despite the fact that not every cult movie takes place in the summer? Still, I can’t be the only one who associates these movies with summer. Add these to your summer horror watchlist, and be sure to share your favorites in the comments. HereditaryCourtesy of A24There’s no way we can talk about horror movies about cults (or even my personal favorite horror movies in general) without starting with Hereditary, Ari Aster‘s jaw-dropping feature debut about a grieving miniature artist (Toni Collette in one of the greatest horror performances of all time) who discovers her recently deceased mother was the leader of a demon-worshiping cult. Suspiria (1977) is available to stream on Tubi and Suspiria 2018 is available to stream on Prime Video.