Dafne Keen Faces a Deadly Curse in Trailer for Whistle
Dafne Keen stars in ‘Whistle’, a new horror film about a cursed Aztec artifact—first trailer just dropped.
Dafne Keen returns to the big screen in Whistle, a new horror film that just released its first trailer after a long delay. The story follows a group of high school students who discover a cursed Aztec Death Whistle. When it’s blown, the sound triggers a terrifying chain of events—each person who hears it is hunted by their own future death.
Keen leads the cast, which includes 
Sophie Nélisse, 
Nick Frost, 
Percy Hynes White, and 
Michelle Fairley. The film is directed by Corin Hardy, known for The Hallow and The Nun. In an earlier interview with Deadline, Hardy said the project combines elements of classic horror with teen-centered storytelling.
Whistle is based on a short story by Owen Egerton, who also wrote the screenplay. It’s being produced by IFC and Shudder and is scheduled for a theatrical release in 2026. An exact release date has not yet been announced.