What we know
A Son (2026)
Maria, an inexperienced school psychologist, senses that behind the apparent happiness of an eight-year-old boy, who has just arrived at the school, lies a secret, the consequences of which are unpredictable. If she is to find out, she will have to decipher what Guille’s mind translates into drawings, as well as overcoming his father’s intransigence.
It shares its release window with Obsession, so expect the two fanbases to be reacting side by side.
It hits the big screen on May 15, 2026.
The people behind it
The history behind A Son
Capitán Araña, Guion Alto and Veleta Films AIE are behind the production. Direction comes from Nacho La Casa, with writing credits for Juan Apolo. Runtime is listed at 1 hour 35 minutes.
The lineup
Who you’ll see in the trailer
On screen, it is Macarena García, Ian Cortegoso and Hugo Silva carrying the story. Macarena García plays María.
Silvia Larrauri
as Secretaria
Daniel Mantero
as Fernando
Why react to this one
This trailer was made to be reacted to
Not every reaction is a yell. Sometimes the camera catches you leaning in, and that says more.
Every theatrical release wants the same thing: a real reaction before the reviews show up. Yours can be first.
Reactions on Reactr
Be one of the first to react
Reaction clips for A Son 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 →
FAQ
A Son: quick answers
How do I make my own A Son reaction video?
Open the reaction recorder on your phone at reactr.gg/studio/a-son, 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 A Son come out?
A Son is scheduled to open in US theaters on May 15, 2026. Dates can shift, so check back for updates.
Who stars in A Son?
Macarena García, Ian Cortegoso, Hugo Silva, Jesús Carroza and Javier Aguayo lead the cast, directed by Nacho La Casa.
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.
