The premise
Potassium (2026)
Opening against Crazy Magical Mexico, this one will be fighting for the same weekend conversation.
Potassium opens in theaters on July 28, 2026.
Reactr / Trailer Reactions / Potassium
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In Theaters · July 28, 2026
Potassium
Trailer Reactions
Comedy
67 is child's play.
Two friends meet in an afternoon to play games and watch movies, but several eerie coincidences related to the number 19 start to happen.
Free · no editing · camera or voice only · the clip is yours to post
The Trailer
Start here: the official Potassium trailer
Dropped July 28, 2026
The making of it
The history behind Potassium
HLTV is behind the production. Direction comes from Heitor Lisboa.
On screen
Who you’ll see in the trailer
The cast is fronted by Heitor Lisboa, José Antônio Bertagnolli and Ana Paula Bertagnolli. Heitor Lisboa plays Heitor.
What makes this one worth reacting to
This trailer was made to be reacted to
Comedy trailers are basically auditions for your own sense of humor. Record the take that proves it.
Theatrical releases are won in the weeks before opening night, and trailer reactions are where that energy starts. Yours can be part of it.
Reactions on Reactr
Be one of the first to react
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Record the first reaction →FAQ
Potassium: quick answers
How do I make my own Potassium reaction video?
Open the reaction recorder on your phone at reactr.film/studio/potassium, 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.
Do I have to be on camera?
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.
When does Potassium come out?
Potassium is scheduled to open in US theaters on July 28, 2026. Dates can shift, so check back for updates.
Who stars in Potassium?
Heitor Lisboa, José Antônio Bertagnolli, Ana Paula Bertagnolli and Carlos Villagrán lead the cast, directed by Heitor Lisboa.
Is Reactr free?
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.
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Your first reaction only happens once
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