Hannah Einbinder plays a queer film director who becomes obsessed with casting the original final girl in Teenage Sex and Death at Camp Miasma, Jane Schoenbrun's third feature, opening in theatres on August 7. Gillian Anderson plays that final girl — the last woman standing in a slasher franchise, the figure every horror fan remembers. The film is a dark fantasy that doubles as a meta-horror exercise, with a slasher homage at its centre (The Hollywood Reporter).

The title, Schoenbrun has said, popped into their head one day; the story was built around it. The film-maker wanted the project to be about coming into their own sexually and in their body after transition. It follows We're All Going to the World's Fair (2021) and I Saw the TV Glow (2024), both of which established Schoenbrun's reputation for psychologically layered, genre-adjacent work. Deadline has described the new film as Schoenbrun's "meta return to feature filmmaking" (Deadline).

Einbinder, an Emmy winner best known for the comedy series Hacks, told The Hollywood Reporter that she drew on three films for her character's dynamic with Anderson's: Secretary, The Duke of Burgundy, and David Cronenberg's Crash — three films about desire, power, and the lines between them. Anderson, also an Emmy winner, said she had sworn off horror before this project after a frightening experience watching a horror film when she was very young. She changed her mind for Schoenbrun's script (The Hollywood Reporter).

The cast also includes Amanda Fix in a supporting role. Mubi, Plan B Entertainment, and Scythia Films are the production companies attached; Mubi is also the distributor. Deadline first reported the casting of Einbinder and Anderson in May 2025, with reporter Matt Grobar breaking the story (Deadline).

Camp Miasma debuted at the Cannes Film Festival on May 13, 2026, where it received a warm standing ovation. Variety's Cannes coverage called it "one of the most gonzo horror movies in years" and framed it as a "lesbian sex horror" — a label that captures the film's refusal to sit neatly in one genre (Variety). The trade also reviewed it as a "slasher homage/parody" (Variety).

A teaser trailer arrived in May 2026, and the cast kept the film in the conversation through the festival circuit: a Spotlight screening at the Provincetown Film Festival, the closing-night slot at Frameline50 (the San Francisco International LGBTQ+ Film Festival), and a live reading of Secretary with the cast in July 2026 — a nod to one of Einbinder's stated influences. The film runs 1 hour and 46 minutes and is scheduled to open at BAM (Brooklyn Academy of Music) on August 13, 2026.

For a film about obsession, bodies, and the stories horror tells about both, the road from Cannes to theatres has been steady and visible — each stop adding context to what Schoenbrun built from a title they could not shake.