Witness terror on a gigantic scale.
Deep in the Amazon, a medical mission spirals into a fight for survival when Boiúna, a colossal ancient predator, awakens to reclaim her domain. In the jungle where nature holds absolute power, she decides who lives and who dies.
Beware Boiúna (2026) is a horror and thriller film directed by Mike P. Nelson, released on October 1, 2026 with a runtime of 1h 44m. It stars Logan Marshall-Green, Kiana Madeira, Jessica Rothe and Jackson Bews. Viewers rate it 6.3 out of 10 across 11 ratings.
Watch the official trailer for Beware Boiúna before you stream it.
Official trailers, teasers, clips and featurettes for Beware Boiúna.
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Logan Marshall-Green
as Brennan Malloy
Kiana Madeira
as Lena
Jessica Rothe
as Alli
Jackson Bews
as Shawn
Juan Pablo Shuk
as Miguel
Will Close
as Callum
Vicente Peña
as Pedro
Jaime Newball
as Raúl
Mateo Moreno
as Diego
Nelson Camayo
as Guilherme
Christophe de Geest
as Proctor
Directed by Mike P. Nelson, written by Alan B. McElroy, Tony Giglio and Alan B. McElroy, produced by Robert Kulzer and Jeremy Bolt.
Average viewer score of 6.3/10 from 11 ratings.
*Beware Boiúna* is very much about getting this group of people into the rainforest for a vague reason and then dropping its story points purely for a bloody snake massacre. It is chock-full of jerky camera movements jittering to an obnoxiously loud sound mix. Repetitive loud noises in a film basically equate to elongated jump scares. *Beware Boiúna* isn't stingy when it comes to butchering people in countless…
Reviewed on October 11, 2026
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Beware Boiúna (2026) does not have a confirmed streaming, rental or digital purchase option listed for your region yet. Availability is refreshed regularly, so check back for updates.
The main cast of Beware Boiúna (2026) includes Logan Marshall-Green, Kiana Madeira, Jessica Rothe, Jackson Bews and Juan Pablo Shuk. The film was directed by Mike P. Nelson. You can see the full cast and crew list, with character names, further up this page.
Beware Boiúna was released on October 1, 2026 and runs for 1h 44m.
Beware Boiúna (2026) holds an average rating of 6.3 out of 10 from 11 viewer votes, and is a good pick if you enjoy horror and thriller films. Read the viewer reviews on this page to decide for yourself.
Yes. The official Beware Boiúna trailer is embedded in the trailer section of this page and plays instantly, no download or sign-up required.
