Amazon MGM Studios unveils trailer and first-look materials for Thailand-set horror adventure starring Kathryn Newton and Lana Condor
Prime Video has released the official trailer and teaser poster for The Devil’s Mouth, a new survival thriller from Amazon MGM Studios that is scheduled to premiere globally on July 29, 2026.
The film combines horror, suspense and adventure elements, following a group of recent college graduates whose celebratory trip along Thailand’s coast turns into a deadly fight for survival. Featuring a cast of rising young adult stars, The Devil’s Mouth is positioned as one of Prime Video’s major genre releases for the summer streaming season.
The trailer and promotional materials were unveiled alongside appearances by the cast at Prime Video’s Obsessed Fest event in Los Angeles, where fans received an early look at the project.
Prime Video Expands Young Adult and Genre Content Slate
Amazon MGM Studios continues to invest heavily in young adult-focused films and series as streaming platforms compete for younger audiences. The Devil’s Mouth blends coming-of-age themes with creature-feature horror, targeting viewers who have helped drive the popularity of YA adaptations and suspense-driven streaming content.
The film stars Kathryn Newton, Lana Condor, Nico Hiraga, Gavin Casalegno, Tommi Rose and Tayme Thapthimthong.
According to the studio, the story balances humor and friendship dynamics before shifting into a high-stakes survival scenario set within one of Thailand’s most visually striking natural environments.
The coastal cave system that serves as the film’s primary setting becomes a central character in the story, creating an increasingly claustrophobic environment as the protagonists attempt to escape.
Thailand’s Coastal Caves Provide the Backdrop for the Thriller
Set along Thailand’s coastline, The Devil’s Mouth follows five friends embarking on a final adventure before beginning the next chapter of their lives.
The group signs up for a guided swim through a remote cave network known as The Devil’s Mouth, a destination known for its dramatic scenery and challenging waterways.
Their excursion takes a dangerous turn when they discover that a severe storm had recently flooded the cave system. The flooding introduced marine life into the freshwater environment, creating unexpected and deadly consequences.
A Fight for Survival Beneath the Surface
According to the film’s synopsis, the friends soon realize that something dangerous has survived within the flooded caves.
As they navigate the labyrinth of narrow passages and submerged corridors, the group faces mounting fear and uncertainty. Panic spreads, trust begins to break down and survival becomes increasingly difficult as they search for a way out.
The film’s narrative combines traditional survival thriller elements with psychological tension, forcing the characters to confront both external threats and internal conflicts.
The studio describes the story as one in which every decision carries life-or-death consequences as the friends struggle to escape the darkness of the cave system.
Creative Team Behind the Production
The Devil’s Mouth is directed by Jeff Wadlow, whose previous work includes action and thriller projects aimed at younger audiences.
The screenplay was written by Aja Gabel and Myung Joh Wesner.
Production duties were handled by Basil Iwanyk, Erica Lee and Jeff Wadlow, all serving as producers under the Producers Guild of America designation.
Executive producers include Carsten H. W. Lorenz, Will Flynn and Sam Greenberg.
The film has a runtime of 105 minutes and carries a PG-13 rating. It is classified as a horror-thriller.
Streaming Platforms Continue Investing in Event Programming
The release of The Devil’s Mouth comes as major streaming services increasingly focus on exclusive genre films capable of generating audience engagement and social media conversation.
For Prime Video, the film adds to a growing lineup of original content designed to attract younger viewers while expanding the platform’s horror and thriller offerings.
The project also reflects the broader industry trend of combining recognizable young talent with high-concept storytelling that can appeal to both domestic and international audiences.
With its blend of suspense, creature-driven horror and scenic international locations, The Devil’s Mouth aims to deliver a cinematic-style streaming experience during the competitive summer viewing season.
Global Premiere Scheduled for July 29
Prime Video subscribers in Canada and other international markets will be able to stream The Devil’s Mouth beginning July 29, 2026.
Backed by Amazon MGM Studios and featuring a cast of emerging Hollywood talent, the film enters the market as a notable addition to Prime Video’s expanding catalogue of original movies. As competition intensifies among streaming platforms, the success of projects such as The Devil’s Mouth will help determine how effectively services can continue attracting audiences with exclusive genre entertainment.