The scream comes from In the Mouth of Madness, the 1994 horror film in which Sam Neill plays John Trent, an insurance investigator drawn into the nightmarish world of a missing horror author. As Trent's grip on reality slips, his panicked outbursts become memorable moments for horror fans. Clips of the performance later circulated on soundboards and in fan edits, where the raw, actor-driven scream stood out from polished jump-scare effects. It remains useful because it sounds like real fear rather than a studio effect, fitting horror tributes, reaction videos and memes about losing control.