New horror movie Whistle features a death scene so "insane", director Corin Hardy had to go back and reread it during his first peek at the script.
Starring Shaun of the Dead's Nick Frost, Yellowjackets' Sophie Nélisse, and Deadpool and Wolverine's Dafne Keen, the film centers on a group of high school students who unwittingly attract the attention of the Grim Reaper when they blow on an ancient Aztec instrument.
