New horror ‘The Outwaters’ so scary it’s triggering Apple Watch heart alerts

New horror film The Outwaters is said to be so terrifying that it’s setting off Apple Watch heart rate alerts.

The new film – which is already out is out in the US, but hits UK cinemas on April 7 – is written and directed by Robbie Banfitch and shot in the found-footage style made famous by 1999 horror The Blair Witch Project.

According to a synopsis, the film follows four travellers who “encounter menacing phenomena while camping in a remote stretch of the Mojave Desert”.

Earlier viewers of the film have claimed that the film has caused a spike in heart rates, triggering Apple Watches to notify “high heart rate” warnings. Others have said it even caused vomiting.

“The Outwaters is a disorienting, primal, exhausting experience. A genre-bending mind f–k that plays with your head as much as the time & space it’s set in,” Twitter user @TheGMcConnachie wrote. “It goes to some dark places & drags you along for the trip. Once hell is unleashed, it’s unrelenting.”

User @JoeMonsterrr wrote that their rewatch of the film “solidified my opinion that I believe this to have one of the most horrific and traumatizing sequences i’ve ever experienced in a found footage horror film”. They also posted a photo of their Apple Watch notification which read: “High Heart Rate.”

“@TheOutwaters left me stunned to the point that my Apple Watch heart monitor kept going off for high heart rate,” @MadeByGRod wrote. “This film is a mind trip and downward spiral into hell. Another big win for Horror.”

“I’m still processing #TheOutwaters,” wrote @caladoleo. “I am not sure if it worked for me. The sounding made me so uncomfortably dizzy that I had to leave the theatre to vomit. This never happened to me before. It’s more disturbing than scary if that makes any sense.”

Other views described the film as “truly terrifying” which induced feelings similar to a “panic attack”.

The Outwaters currently has a 72 per cent critics’ score on Rotten Tomatoes and a 51 per cent audience score, described by reviewers as a “terrifying cosmic roller-coaster ride into sheer madness” and “pure nightmare fuel”. “This film may induce whiplash. And, perhaps, nausea. Proceed at your own risk,” Sean Collier of Pittsburgh Magazine wrote.

Elsewhere in film news, there’s a new b-movie called ‘Cocaine Shark’ and you need to see the trailer.