What to expect
Lockbox (2026)
Opening against Minions & Monsters, this one will be fighting for the same weekend conversation.
It hits the big screen on July 3, 2026.
Reactr / Trailer Reactions / Lockbox
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In Theaters · July 3, 2026
Lockbox
Trailer Reactions
Horror
A woman puts her life on the line to protect her troubled, enigmatic cousin, Winthrop, who has been targeted and hunted by a powerful supernatural force.
Free · no editing · camera or voice only · the clip is yours to post
The Trailer
Start here: the official Lockbox trailer
Dropped June 9, 2026
Who’s in it
Who you’ll see in the trailer
The cast is fronted by Carla Gugino, Lou Taylor Pucci and Katharine Isabelle. Carla Gugino plays Ellen Hershbergen.
The people behind it
The history behind Lockbox
Capstone Studios, Brightlight Pictures and MGM+ Studios are producing. Daniel Stamm is in the director’s chair, with writing credits for Justin Yoffe. It clocks in at 1 hour 45 minutes.
The reason to record this one
This trailer was made to be reacted to
Horror trailers are built for reaction cameras. The dread, the fake-out, the sting: your face does half the storytelling.
A theatrical trailer is built to travel before the movie does. Your reaction is part of how it travels.
Reactions on Reactr
Be one of the first to react
Reaction clips for Lockbox 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
Lockbox: quick answers
How do I record a Lockbox trailer reaction?
Open the reaction recorder on your phone at reactr.film/studio/lockbox, 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 Lockbox come out?
Lockbox is scheduled to open in US theaters on July 3, 2026. Dates can shift, so check back for updates.
Who stars in Lockbox?
Carla Gugino, Lou Taylor Pucci, Katharine Isabelle, Roman Kinsella and Donald Sales lead the cast, directed by Daniel Stamm.
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.
More trailers this season
Keep reacting
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June 19, 2026
Pinocchio: Unstrung
July 24, 2026
Above & Below
July 29, 2026
Minions & Monsters
July 1, 2026
Moana
July 10, 2026
Your first reaction only happens once
Watch the Lockbox trailer, hit record on camera or voice only, and the clip is yours to post.
React to Lockbox →Are you the rights holder of Lockbox? Send us your press kit and this page is rebuilt from your material, with your assets handed to every creator who reacts.
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