Dafne Keen’s Whistle trailer premiered at San Diego Comic‑Con, where she and Sophie Nélisse appeared on the IFC/Shudder panel to introduce the first footage from the new horror movie.
The teaser opens with a group of misfit high school students discovering an ancient Aztec Death Whistle. When one blows it, the high‑pitched sound summons their future deaths—see friends hunted by their own destinies. The tension escalates quickly, with ominous visuals and a mounting body count. The tone nods to Final Destination meets The Ring. Watch below.
At the panel, Dafne Keen and Sophie Nélisse promised Whistle delivers “shocking twists and high‑stakes tension” built around youthful camaraderie under supernatural threat. Though Keen didn’t share plot specifics, she discussed embracing the film’s dark mythology and cinematic kills, underlining audience immersion in a horror experience made for theaters.
This teaser marks the first glimpse into Keen’s lead role in Whistle. The trailer effectively captures the film’s dark premise, in which friends unwittingly trigger an ancient curse through the Death Whistle. The imagery and score hint at an immersive, suspense‑driven experience made for the big screen.
Release info
Whistle is slated for a 2026 theatrical release in the U.S.
The film stars Dafne Keen in the lead, joined by Nick Frost, Sophie Nélisse, Sky Yang, and Percy Hynes White.
Directed by Corin Hardy (The Nun), Whistle follows a group of high school misfits who stumble upon a cursed Aztec Death Whistle. Once blown, the whistle summons their future deaths to hunt them down. As the body count rises, the group scrambles to uncover the artifact’s origins and stop the curse before it claims them all. The movie is written by Owen Egerton and produced by IFC Films and Shudder.
Watch the official trailer:
