Demons (1985)
Lamberto Bava directs and co-writes, Dario Argento produces and co-writes, and Claudio Simonetti does the score (with an extra dose of ‘80s rock n’ roll, thanks to soundtrack cuts from Motley Crue, Billy Idol, and others) for this gruesomely entertaining tale. When a group of pleasingly varied weirdos gathers for a preview screening (hey, everyone loves a free movie!), a cursed mask makes the line between fiction and reality blur… and then zombies take over. Watch on Shudder.