What to expect
The Hillbilly Scientist (2026)
It shares its release window with The Hunger Games: Sunrise on the Reaping, so expect the two fanbases to be reacting side by side.
The theatrical release lands November 20, 2026.
Reactr / Trailer Reactions / The Hillbilly Scientist
New here? Reactr is the free trailer reaction maker for creators: watch the trailer below, record your reaction on camera or voice only, and post the clip to your own channel. Studios and brands start here.
In Theaters · November 20, 2026
The Hillbilly Scientist
Trailer Reactions
Documentary
The only authorised Lazarus Lake documentary
While modern running has evolved toward sleek curation, optimisation, and commercialisation, Lazarus Lake has spent 50 years designing formats with an unapologetic, honest difficulty. The Hillbilly Scientist reveals that Laz’s cruellest courses are rooted in a deeply scientific understanding of human psychology and physical limits. This is the only official documentary dedicated to the creator of the Barkley Marathons and Big’s Backyard Ultra. Filmed over more than a year, it reveals the man behind the myth through never-before-seen footage, exclusive testimonials, and exceptional access to Laz’s world.
Free · no editing · camera or voice only · the clip is yours to post
Would you react to this for a studio bonus?
Studios fund bonuses on titles they want reactions for. Raising your hand tells them you are in. No commitment, no promise of payment.
The Trailer
Start here: the official The Hillbilly Scientist trailer
Dropped October 19, 2026
The cast
Who you’ll see in the trailer
The cast is fronted by Lazarus Lake, Jasmin Paris and John Kelly. Lazarus Lake plays Self.
Lazarus Lake
as Self
Jasmin Paris
as Self
John Kelly
as Self
Rich Roll
as Self
Rachel Entrekin
as Self
Mathieu Blanchard
as Self
David Horton
as Self
Abby Levene
as Self
Behind the camera
The history behind The Hillbilly Scientist
The film comes from Mellor&Smith. Direction comes from Paul Mellor and Luke Jarmey. The finished film runs 1 hour 15 minutes.
Why react to this one
This trailer was made to be reacted to
Real stories pull real reactions. No script on screen, none on your face either.
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
Reaction clips for The Hillbilly Scientist 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
The Hillbilly Scientist: quick answers
How do I record a The Hillbilly Scientist trailer reaction?
Open the reaction recorder on your phone at reactr.film/studio/the-hillbilly-scientist, 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 The Hillbilly Scientist come out?
The Hillbilly Scientist is scheduled to open in US theaters on November 20, 2026. Dates can shift, so check back for updates.
Who stars in The Hillbilly Scientist?
Lazarus Lake, Jasmin Paris, John Kelly, Rich Roll and Rachel Entrekin lead the cast, directed by Paul Mellor and Luke Jarmey.
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
Avengers: Doomsday
December 18, 2026
A Story of Derry
October 31, 2026
Drive - The Pretenders
October 28, 2026
Dune: Part Three
December 18, 2026
Godzilla Minus Zero
November 3, 2026
The Mongoose
October 30, 2026
Your first reaction only happens once
Watch the The Hillbilly Scientist trailer, hit record on camera or voice only, and the clip is yours to post.
React to The Hillbilly Scientist →Are you the rights holder of The Hillbilly Scientist? Send us your press kit and this page is rebuilt from your material, with your assets handed to every creator who reacts.
Film data and images courtesy of TMDB. This product uses the TMDB API but is not endorsed or certified by TMDB.