A serpent bigger and meaner than an anaconda is coming to cinemas. Beware Boiúna, a 2026 survival horror directed by Mike P. Nelson, drops a medical aid team into a remote village on the Amazon River — and then lets the forest do the rest.
The story follows Alli (Jessica Rothe), Lena (Kiana Madeira) and Callum (Will Close), who arrive by boat to help villagers and soon cross paths with a second group of outsiders led by Malloy (Logan Marshall-Green) and Shawn (Jackson Bews). Their intentions towards the community are anything but charitable. After Alli and Lena accidentally kill Shawn, things unravel fast: the body is found, the groups flee by boat, and both crews end up stranded in a restricted stretch of river where, according to local belief, an ancient creature decides who lives and who dies.
What sets this apart from the Anaconda films of the late 1990s and early 2000s is the framing. For much of the first half, Boiúna is less a monster than a supernatural force woven into the village's mythology — an presence rather than a spectacle. When the creature does finally appear, the film leans hard into jungle survival: characters sink into black mud, get shredded by spiky vegetation and are forced to swim the river with something enormous moving below.
Reviewers note the film's biggest strength is exactly that sense of place. The Amazon comes across as vast, indifferent and genuinely dangerous — an environment where humans are prey, not apex predators. The snake itself is more elusive, kept to brief night-time and underwater glimpses that preserve the mystery but arguably soften the scare factor. The climax whittles the cast down to a single survivor, closing on the idea that the creature was never just an animal.
For travellers, the film works as a vivid, if unsettling, portrait of one of the planet's wildest regions — and a reminder that the Amazon has its own rich vein of folklore. The Boiúna legend, a giant river serpent from Brazilian and Amazonian mythology, predates any Hollywood treatment by centuries. Anyone considering a river cruise or jungle lodge stay around Manaus will recognise the territory: dark-water tributaries, flooded forest and villages reachable only by boat.
The film reaches Thai cinemas on 8 October, released by Sahamongkolfilm International, which leaned into local buzz by folding the celebrity pygmy hippo Moo Deng into its August marketing push. Whether or not the serpent delivers enough scares, the movie makes a decent two-hour preview of what the world's largest rainforest feels like when you're completely at its mercy — minus the riverboat and the guide.
Fans of creature features, survival horror and South American legend will find plenty to enjoy, even if the ending leaves you wanting a fuller look at the snake itself.
Review via Bangkok Post Life.
