Beware Boiúna

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1:47

Beware Boiúna

R

In Theaters Oct 2

1h 44m

Horror

Mystery & Thriller

Adventure

Action

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Watchlist

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Tomatometer

Popcornmeter

63%

Tomatometer

27 Reviews

Popcornmeter

0 Verified Ratings

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.

Coming Soon

In Theaters Oct 2

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Mike P. Nelson

Director

Logan Marshall-Green

Brennan Malloy

Kiana Madeira

Lena

Jessica Rothe

Alli

Will Close

Callum

Jackson Bews

Shawn

William Bibbiani

TheWrap

11 hrs ago

It’s just a really, really scary movie about a really, really, really big snake.

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Matthew Jackson

AV Club

1 day ago

C

Choppy, meandering, and frustratingly dim (literally and metaphorically), Beware Boiúna squanders a great concept, and swamps the moments it does manage to deliver under loads of narrative and visual murk.

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Brian Tallerico

RogerEbert.com

Sep 22, 2026

A giant snake movie that barely lets us see the snake, choosing to throw the camera around and turn up the aggressive score every time it attacks characters that are almost impossible to care about.

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Joseph Robinson

Fish Jelly Films (YouTube)

1 hr ago

2.5/5

For all its visual flair, Beware Boiúna keeps its creature too scarce and its story too familiar to make the slow build worthwhile.

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George Bate

Screen Rant

3 hrs ago

6/10

Nelson departs from other giant snake movies, and, in turn, gives his film an identity of its own, by embracing a darker, more mature tone. It's far more tonally akin to Jaws than Anaconda...

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Maitland McDonagh

MaitlandOnMovies (Substack)

4 hrs ago

[R]ather than succumbing to the predictable rhythms of your typical jungle-safari nightmare, the narrative consistently subverts adventure-movie tropes — you’ll know them when you see them.

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Beware Boiúna: Vertical Movie Clip - Grab Onto Something

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"Don't Play With Snakes in the Amazon!" Jessica Rothe, Kiana Madeira & Mike P. Nelson on Filming 'Beware Boiúna'

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Beware Boiúna: Trailer 1

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Synopsis

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.

Director: Mike P. Nelson
Producer: Robert Kulzer, Jeremy Bolt
Screenwriter: Alan B. McElroy, Tony Giglio
Distributor: Lionsgate
Production Co: Constantin Entertainment, JB Pictures, Jaguar Bite, Constantin Film, JB Pictures
Rating: R (Bloody Violent Content|Some Grisly Images|Language)
Genre: Horror, Mystery & Thriller, Adventure, Action
Original Language: English
Release Date (Theaters): Oct 2, 2026, Wide
Runtime: 1h 44m

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