What's opening this September, a stacked month for horror

September 2026 is a stacked month for horror releases, spanning theaters, streaming, and VOD. Here's what's worth your watchlist.

'R.L. Stine's Pumpkinhead 2' drops its trailer, brings in Elvira (Tubi, Oct. 9)

The trailer dropped September 22, revealing that Cassandra Peterson, horror icon Elvira herself, joins the sequel as a witch caught up in a curse threatening to consume the whole town of Redhaven. The film continues the story from 2025's original R.L. Stine's Pumpkinhead, with writer-director Jem Garrard returning and Bean Reid and Adeline Lo also starring. It hits Tubi October 9.

Why it matters: casting Elvira in a monster-of-the-week sequel is a deliberate nod to horror-hosting nostalgia, a nice hook even if the film itself is a straightforward Halloween sequel.

Source: Bloody Disgusting

'Backrooms' hits HBO Max as 2026's second-biggest horror hit (Sept. 25)

Kane Parsons' psychological horror film, following a furniture store owner and a therapist who find an endless dimension of liminal spaces through a basement door, lands on HBO Max this Friday, alongside 2018's The Meg. Reporting frames Backrooms as 2026's second-highest-grossing horror film theatrically; it stars Chiwetel Ejiofor, Renate Reinsve, and Mark Duplass.

Why it matters: a film built entirely around internet liminal-space horror crossing over into a major theatrical hit, and now a mainstream streaming release, is a genuinely interesting internet-to-cinema pipeline story.

Source: ComingSoon.net

'Resident Evil' reboots the franchise for theaters (Sept. 18)

A new theatrical adaptation returns to the original T-Virus outbreak, built to lean into survival-horror atmosphere rather than straight action, a deliberate callback to the games' roots.

Why it matters: video-game-to-movie adaptations live and die on whether they capture feel, not just plot, this one is being pitched explicitly on atmosphere.

'Parasomnia' brings Wes Craven-influenced dread to Shudder (Sept. 4)

A psychological horror film where night terrors start bleeding into waking life. The influence is intentional: restraint and creeping dread over jump-scare frequency.

Why it matters: fits a broader trend of horror leaning on psychological unease rather than shock, the kind of horror that sticks with you after the credits roll.

'Don't Move' traps survivors with a prehistoric threat (Sept. 11)

A creature-horror film in theaters: survivors face a prehistoric spider during a church retreat in West Virginia, an unusual setting hook for a monster movie.

'Family' asks whether it's possession, or just growing up (Sept. 25, limited/VOD)

A psychological thriller in which a child becomes convinced a malevolent entity is corrupting her parents, a domestic-horror premise that plays as much on ambiguity as on scares.

Bottom line: this month's slate leans heavily toward atmosphere and psychological horror over gore, a good month for the "quiet horror sticks longer" crowd.

Source: Bloody Disgusting