Where to watch
Each link opens a search on that service. Checked 13 October 2026.
Streaming data from JustWatch
400 Days
2015
· Movie
· 91 min
F
MEANRANK
39/100
Every rating
29–46
out of 100
Everyone agrees
Lowest is Rotten Tomatoes viewers on 29, highest is Kinopoisk on 46.
See the most agreed on films →Four astronauts volunteer for a simulated mission inside an underground bunker to study the psychological effects of long-duration space travel. Their 400-day isolation is meant to prepare for a future mission to Mars. As the experiment progresses, the line between simulation and reality begins to break down, and the crew starts to experience strange and unsettling events that may not be part of the test.
Details
- Director
- Matt Osterman
- Writer
- Matt Osterman
- Studio
- New Artists Alliance
- Released
- 29 October 2015
- Country
- United States
- Language
- English
- Runtime
- 91 min
This title elsewhere
Cast
Full cast (29) →
Beyond the numbers
All lists →
8 October 2026
Leonardo DiCaprio's films, ranked—and the performances inside them
Twenty-one selected films, with a closer look at the acting: comic timing, self-invention, wounded authority and the effort that sometimes shows.
8 October 2026
Why The Matrix still works: the action is the argument
How bodies, belief and a world with visible rules make the 1999 film more than a collection of famous effects.
8 October 2026
Batman movies ranked: the films behind the scores
Twelve theatrical films, from Adam West to Robert Pattinson, and the different claims they make for the mask.
7 October 2026
Why do films and TV shows keep taking God’s name in vain?
A Christian viewer’s objection, the Marvel language notes and the difference between portraying doubt and treating a name as disposable.
30 September 2026
The most popular film genres? What the ratings actually show
Drama leads the total, but volume, a typical film’s attention and average score tell different stories.
29 September 2026
Films rated 4.7 on Google: a 59-film archive
A historical selection, with a closer look at spectacle, sequels and what a high audience average leaves out.
