Beware Boiúna (2026) Review: She Chooses Who Lives and Who Dies. The Giant Snake Horror Better Than Anaconda Reboot (2025)?

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source: tv.lk21

Synopsis: 

Beware Boiúna (2026) is a horror thriller film directed by Mike P. Nelson. The film runs for 104 minutes (1 hour and 44 minutes) and was released on September 17, 2026 (Fantastic Fest), October 2, 2026 (United States - Lionsgate), and October 16, 2026 (Indonesia). The film received an R rating for bloody violence, disturbing images, and coarse language. The filming location was genuinely in the Amazon rainforest, Colombia, not in a studio. The film was previously titled Titan and then Boiúna: Legend of the Amazon before becoming Beware Boiúna.

In the middle of the Curuçá River, Amazon, a medical ship named R.R. Hermes carries a humanitarian mission to remote villages. This team consists of Alli (an idealistic young doctor), Callum (a fellow doctor), Miguel (the mission leader), Raul (the ship's captain), and Lena (the ship's mechanic). Lena actually has a personal mission. She joined the trip to the Amazon to search for her younger brother, Jorge, who disappeared years ago in that forest. Trouble begins when they clash with a group of contractors led by Brennan Malloy. Brennan and his younger brother Shawn are the type of people who come to the Amazon not to help, but to exploit the forest. An incident between a drunk Shawn against Alli and Lena ends in Shawn's death and causes Brennan's group to hunt down the medical ship. They are chased until they enter a forbidden territory. The territory belonging to Boiúna. In Amazonian mythology, Boiúna, or Cobra Grande, is a giant serpent guarding the river. From here, the film turns into a survival horror. It is not just about fighting the snake, but about fighting humans who are just as greedy, and a forest that sides with no one.

The film received several positive reviews. Its real location creates a genuine and natural atmosphere without CGI. The filming was actually done in the Colombian Amazon from October 7 to December 6, 2024. You can feel the humidity, the darkness, and the suffocating density of the forest. This is what makes this film different from last year's comedic Anaconda reboot. Director Mike P. Nelson does not overexpose the snake. He uses the Jaws technique; we more often see its effects, such as churning water, a rocking boat, and people disappearing, rather than the snake itself. When the snake appears, its scale is finally felt because it is compared to the human body.

No film is free from flaws. The most common complaint is the lack of Boiúna's screen time. For those who watch expecting to see a giant snake rampaging for 90 minutes, this film feels stingy. The focus is more on human versus human drama in the first hour. The early pacing is a bit slow, the character development of Brennan versus the medical team is a bit too long. If you are the type of impatient viewer, the first 40 minutes will feel like an ordinary survival drama. In America, the film only grossed around $924,608 with an opening weekend of $550,546. This means the film is indeed more of a festival or cult film, not a blockbuster.

This film stars: Jessica Rothe, Logan Marshall-Green, Kiana Madeira, Juan Pablo Shuk and more.

In my opinion:

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Now, I will give you my opinion about the plus and minus of this film. On the plus side, I like the idea of this story. The Mother Serpent, Boiúna, is already introduced at the beginning of the film, where she attacks gold miners who are destroying nature. Boiúna is depicted as a semi-divine creature who maintains the balance of the forest, even her jargon makes me shudder, "she chooses who lives and who dies." Cool, right? My assumption is that Boiúna has a mind that can weigh good and evil. Then I was tricked about who the real main character is. It turns out someone I thought was the main character gets eaten too. Visually, Boiúna is quite terrifying, with her enormous size it is almost impossible to kill her. That is indeed how it should be, Boiúna is indeed ferocious, but she is the one who maintains the balance of nature. When nature is balanced, she will be calm, but if someone disturbs that balance, she will go on a rampage.

The minus point is that the origin of Boiúna is not explained in detail. It is not clear whether she is an ancient snake that is hundreds of years old like the Titanoboa? Or is she indeed a semi-divine creature guarding the forest? Or is she just a super-large snake? So for me, this is the first plot hole in this film. Then, where did that charismatic jargon go? "Choosing who lives and who dies." In fact, Boiúna slaughters anyone, even good people. This confuses me, as if that jargon is just advertising words to attract people. Maybe for those who are not observant, you will be confused as to why Boiúna is rampaging. Sorry, I will SPOILER a little, so the health volunteers arrive at the next destination, the Sao Nevoa area. There it is already in ruins, of course the audience's thought is that something rampaged there and of course the accusation will go to Boiúna. The question is, why? It turns out that it is a logging area and clearly the wood comes from deforestation. So the plot hole I felt is that there is no explanation, even a little, as to why Boiúna went on a rampage. We are asked to guess it ourselves. The story itself starts to get tense in the middle of the film, because after Boiúna appears at the beginning of the film, next is only drama until the middle.

Visually, the audio and cinematography are already good, I would even say better than last year's Anaconda in 2025. I apologize if my opinion is not the same as yours, but that is what I felt, hehe. If you like Anaconda (1997), The Grey, or Jaws, you will like this film. This is not a cheap snake film. This is a film about who deserves to survive in the forest - humans or the monster.

For me this one is 7/10.

Knowledge Center:

The Legend of Boiúna - The Black Serpent of the Amazon. In Tupi-Guarani mythology, Boiúna, also known as Cobra Grande, is not just a giant snake. She is the guardian of the rivers, the keeper of balance. She can shapeshift into a canoe, a boat, or a beautiful woman to lure fishermen into the deep. When she awakens, the jungle decides who lives and who dies.

 

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If you have watched Beware Boiúna, you must be wondering: Does Boiúna really exist in mythology? The answer is: YES, and its legend is far scarier than the film. Let's briefly discuss this giant snake in the KC column.

Boiúna is not a monster made up by Hollywood. She is one of the most respected and feared creatures in Brazilian folklore and the Amazon region. So what does the name Boiúna mean? The name Boiúna comes from the Tupi-Guarani language, the language of the native Amazon tribes, Mboi-una = black snake. In some areas she is also called Cobra Grande, which means Big Snake. Amazonian people believe that if you mention her name carelessly on the river, she can hear you.

Boiúna is not just a snake, she is the guardian of balance. Unlike film monsters that are just hungry and kill, Boiúna in the original legend has a duty. She is the guardian of the river and the forest. She maintains the balance of nature. If humans take too many fish, cut down forests carelessly, or pollute the river, Boiúna will wake up and punish them. This is what makes the film Beware Boiúna feel different. The message in the film is the same: "The jungle makes good people better, and bad people monsters." Boiúna does not choose her prey randomly. She punishes the greedy.

Boiúna has a terrifying ability, which is to shapeshift, this is the most iconic part of the Boiúna legend. Old people in the Amazon believe Boiúna can shapeshift into a canoe or wooden boat. She will float silently on the river, looking like an abandoned empty boat. A curious fisherman who climbs onto it will drown with the boat when Boiúna dives and takes him to the bottom of the river. Boiúna is a female snake, therefore she can transform into a beautiful woman. In some versions of the story, Boiúna transforms into a long-haired woman who calls fishermen from the riverbank at night. Whoever approaches will never return. Before Boiúna appears, the river will suddenly become thick with fog, the water will swirl, and a rumbling sound will be heard even though there is no rain. That is a sign she is moving underwater.

The most often told characteristic of Boiúna is her eyes that glow like fire. In folklore, Boiúna's gaze can make humans paralyzed with fear, as if hypnotized. They cannot run, they cannot scream. They can only watch the giant snake approaching. In the visual above, you can see those glowing yellow eyes. That is not just a scary effect. That is a symbol of Boiúna's hypnotic power in the original legend. To this day, fishermen on the Amazon River and Parana River still believe in Boiúna. They have taboos:

• Do not shout on the river at night.
• Do not throw garbage into the river.
• Do not take more fish than you can eat.

For them, Boiúna is not just a bedtime story. She is the ancestors' way of teaching respect for nature. And that is why Hollywood finally brought her up in 2026. At a time when the world is busy talking about Amazon deforestation, the legend of the angry forest guardian feels very relevant. Boiúna is not about a snake that wants to eat humans. Boiúna is about the forest striking back when humans forget themselves. If you like the film Beware Boiúna, you are actually watching a modern version of an ancient warning that has been told for hundreds of years on the banks of the Amazon River.