Witness terror on a gigantic scale.
Free · no editing · camera or voice only · the clip is yours to post
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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.
Opening against Verity, this one will be fighting for the same weekend conversation.
The theatrical release lands October 2, 2026.
Constantin Film, JB Pictures and Jaguar Bite are behind the production. Mike P. Nelson directs, with writing credits for Alan B. McElroy and Tony Giglio. The finished film runs 1 hour 44 minutes. It carries an R rating in the US.
The cast is fronted by Logan Marshall-Green, Kiana Madeira and Jessica Rothe. Logan Marshall-Green plays Brennan Malloy.
A thriller trailer plants a question in the first ten seconds and spends the rest refusing to answer it. React to the wait.
Theatrical releases are won in the weeks before opening night, and trailer reactions are where that energy starts. Yours can be part of it.
Reaction clips for Beware Boiúna will appear here as Reactors share them. The Reactr recorder is free for creators: watch the trailer, record on camera or voice only, and the finished clip is yours to post on your own TikTok, Reels, or Shorts channel.
Record the first reaction →Open the reaction recorder on your phone at reactr.gg/studio/beware-boiuna, choose camera or voice only, and press record while the trailer plays. Reactr captures your reaction and gives you a share-ready clip when the trailer ends. It is free.
No. Voice Reaction mode records your commentary with the microphone only: the camera stays off, no face is recorded, and you still get a share-ready clip for your channel.
Beware Boiúna is scheduled to open in US theaters on October 2, 2026. Dates can shift, so check back for updates.
Logan Marshall-Green, Kiana Madeira, Jessica Rothe, Jackson Bews and Juan Pablo Shuk lead the cast, directed by Mike P. Nelson.
Yes. Recording reaction clips on Reactr is free, with no paywall on the finished clip. You own your clip and can post it to TikTok, Reels, Shorts, or anywhere else. Reactr makes money from studios and sponsors, not from creators.
Watch the Beware Boiúna trailer, hit record on camera or voice only, and the clip is yours to post.
React to Beware Boiúna →
