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The Most Unknown (2018) – Official Trailer, Cast & Details
The Most Unknown at a Glance
The Most Unknown is a 2018 documentary film directed by Ian Cheney, starring Jennifer L. Macalady, Davide D'Angelo and Axel Cleeremans. It runs 1 hour 32 minutes and premiered on March 16, 2018. The Most Unknown has a TMDB rating of 6.5 out of 10 based on 52 votes.
Watch the official The Most Unknown trailer for free in 123Movies below.
1080p HD • Free YouTube Stream
Storyline & Synopsis
An epic documentary film that sends nine scientists to extraordinary parts of the world to uncover unexpected answers to some of humanity’s biggest questions. How did life begin? What is time? What is consciousness? How much do we really know? By introducing researchers from diverse backgrounds for the first time, then dropping them into new, immersive field work they previously hadn’t tackled, the film pushes the boundaries of how science storytelling is approached. What emerges is a deeply human trip to the foundations of discovery and a powerful reminder that the unanswered questions are the most crucial ones to pose. Directed by Emmy-nominated and Peabody Award-winning filmmaker Ian Cheney and advised by world-renowned filmmaker Werner Herzog, The Most Unknown is an ambitious look at a side of science never before shown on screen.
Where “The Most Unknown” Fits in the 123Movies Catalog
Jennifer L. Macalady
Self - Microbiologist, Penn State University
Davide D'Angelo
Self - Physicist, Università degli Studi di Milano
Axel Cleeremans
Self - Cognitive Psychologist, Université libre de Bruxelles
Luke McKay
Self - Astrobiologist, Montana State University
Rachel L. Smith
Self - Astrophysicist, North California Museum of Natural Sciences
Erik Cordes
Self - Ecologist & Chief Expedition Scientist, Temple University
Victoria Orphan
Self - Geobiologist, California Institute of Technology
Jun Ye
Self - Physicist, University of Colorado-Boulder & National Institute of Standards and Technology
Anil Seth
Self - Neuroscientist, University of Sussex
Laurie Santos
Self - Cognitive Psychologist, Yale University
Frequently Asked Questions About The Most Unknown
When was The Most Unknown released?
The Most Unknown was released on March 16, 2018.
What is the runtime of The Most Unknown?
The Most Unknown has a runtime of 1 hour 32 minutes (92 minutes).
Who stars in The Most Unknown?
The Most Unknown stars Jennifer L. Macalady as Self - Microbiologist, Penn State University, Davide D'Angelo as Self - Physicist, Università degli Studi di Milano, Axel Cleeremans as Self - Cognitive Psychologist, Université libre de Bruxelles and Luke McKay as Self - Astrobiologist, Montana State University. The cast also includes Rachel L. Smith, Erik Cordes, Victoria Orphan and Jun Ye.
Who directed The Most Unknown?
The Most Unknown was directed by Ian Cheney.
What genre is The Most Unknown?
The Most Unknown is listed on TMDB as a documentary film.
What is the TMDB score of The Most Unknown?
On TMDB it has an average user score of 6.5/10 from 52 votes.
Where can I watch the trailer for The Most Unknown for free?
You can watch the trailer for The Most Unknown, "The Most Unknown (Official Documentary Trailer)", for free on this 123Movies page. It is embedded from YouTube.
What movies are similar to The Most Unknown?
Movies TMDB recommends alongside The Most Unknown include Earth: One Amazing Day (2017), Avatar: The Deep Dive - A Special Edition of 20/20 (2022), Come See Me in the Good Light (2025), A Toxic Love Story (2026) and The Curse of the Dragon (1993).
Can I stream the full movie of The Most Unknown on 123Movies?
No. 123Movies only shows official trailers and title information. Full movies are not hosted or linked on this site.
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