Beware Boiúna (2026)
2026 • TMDB 63% • 1h 44m • Horror, Thriller
Where to Watch
In the United States, Beware Boiúna (2026) is not currently listed for streaming or digital rental on JustWatch US. JustWatch US lists cinema screenings at Cinemark and Harkins Theatres, and physical copies on Amazon DVD / Blu-ray, with DVD from $24.98 and Blu-ray from $29.99. Check current availability on JustWatch US.
Overview
When a medical mission travels deep into the Amazon, its members expect hardship, disease, and isolation — not a predator from local legend. Beware Boiúna follows that team as a routine humanitarian journey unravels into a fight for survival, with the river, the rainforest, and something vast beneath the water closing in from every side. Director Mike P. Nelson leans into the scale of the jungle itself: dense canopy, murky currents, and long stretches of quiet that make every rustle feel dangerous, before the film unleashes its giant serpent in full, terrifying force. At its center are people trying to hold together under pressure — a leader wrestling with responsibility, colleagues forced to trust one another, and local guides who understand the forest far better than their visitors do. The film works best as a throwback creature feature, mixing old-fashioned monster-movie thrills with a modern sense of place and folklore. It is not subtle, and it does not need to be: this is a big, slippery, crowd-pleasing nightmare about nature refusing to be tamed.
Why Watch Beware Boiúna?
Beware Boiúna is for viewers who want a creature feature that goes big and does not apologize for it. The Amazon setting gives the scares a real sense of place, the giant serpent is staged for maximum shock, and the survival stakes stay clear even when the jungle closes in. If you enjoy monster movies, rainforest adventures, and folklore-inspired horror, this is an easy, entertaining watch — best seen with the sound up and the lights down.
Director and Cast
- Director: Mike P. Nelson
- Logan Marshall-Green (Brennan Malloy)
- Kiana Madeira (Lena)
- Jessica Rothe (Alli)
- Jackson Bews (Shawn)
- Juan Pablo Shuk (Miguel)
- Will Close (Callum)
- Vicente Peña (Pedro)
- Jaime Newball (Raúl)
- Mateo Moreno (Diego)
Official Trailer
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Source for facts and images: TMDB. Streaming status checked on JustWatch US, October 29, 2026.
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