The first teaser trailer for 100 Nights of Hero has arrived.

The film stars Emma Corrin, Nicholas Galitzine, Maika Monroe, Amir El-Masry, Charli XCX, Richard E. Grant and Felicity Jones.

The film’s logline reads, “When a charming house guest (Galitzine) arrives at a remote castle, the delicate dynamic between a neglectful husband, his innocent bride Cherry (Monroe), and their devoted maid Hero (Corrin), is thrown into chaos.”

Julia Jackman wrote and directed the film, based on Isabel Greenberg’s graphic novel.

It will premiere September 6 at the 2025 Venice Film Festival and arrive in theaters December 5.