IMDb 4.4 2015 HD

400 Days

400 Days

2015
Mystery Science Fiction Thriller
91 min NR USA
4.361 / 10
4.4 IMDB

4 would be astronauts spend 400 days in a land locked space simulator to test the psychological effects of deep space travel but, when something goes terribly wrong…

Personnel // Cast & Crew

Director Matt Osterman / Devon Martinez
Starring
Brandon Routh / Caity Lotz / Dane Cook / Ben Feldman / Tom Cavanagh / Grant Bowler / Sally Pressman / Mark Steger

How Viewers Describe This Film

Common themes and sentiments

intriguing suspenseful ambiguous psychological unsettling thought-provoking claustrophobic tense confusing decent slow cerebral

Reviews

I
Isabelle Moreau
Apr 20, 2026
3.5 / 5
3.5

'400 Days' offers a compelling, if occasionally uneven, exploration of what happens when the lines between reality and simulation blur into oblivion. The ensemble cast, including Dane Cook and Ben Feldman, deliver committed performances that carry the weight…

M
Marcus Thorne
Apr 20, 2026
3.0 / 5
3.0

With a cast featuring familiar faces like Brandon Routh and Caity Lotz, '400 Days' promises a journey into the mind-bending consequences of simulated space travel. The film initially succeeds in establishing a tense, claustrophobic environment, hinting at the…

G
Genevieve Dubois
Apr 20, 2026
4.0 / 5
4.0

'400 Days' is a taut psychological thriller that expertly plays with audience perception. Tom Cavanagh brings a compelling gravitas to his role, and the chemistry among the cast is palpable as they navigate the disorienting shifts in their…

A
Arthur Pendelton
Apr 20, 2026
2.5 / 5
2.5

The concept behind '400 Days' is its strongest asset: four astronauts testing the psychological limits of space travel in a simulator, only to find Earth irrevocably changed upon their 'return'. Dane Cook and Ben Feldman provide solid support,…

E
Eleanor Vance
Apr 20, 2026
3.5 / 5
3.5

Brandon Routh and Caity Lotz lead a capable ensemble in '400 Days', a sci-fi thriller that grapples with the psychological strain of prolonged isolation. The film's premise, a deep space simulation gone awry, offers fertile ground for suspense.…

FAQs

The film's conclusion is a significant point of discussion precisely because it deliberately blurs the lines between the initial simulation and what the characters perceive as reality. The ambiguity surrounding whether the astronauts have truly escaped or are trapped in an even more complex scenario is central to its lasting impact. This open-ended approach challenges viewers to form their own interpretations, making the final moments a springboard for debate about perception, control, and the very definition of freedom.