IMDb 4 2021 HD

Infinitum: Subject Unknown

Infinitum: Subject Unknown

2021
Mystery Science Fiction Thriller
86 min NR United Kingdom
5.382 / 10
4 IMDB

Jane is the subject of a twisted science experiment where she is placed in a parallel world and is forced to find a way to either alter her…

Personnel // Cast & Crew

Director Matthew Butler-Hart
Starring
Tori Butler-Hart / Ian McKellen / Conleth Hill / Wendy Muir Hart / Christopher Hart / Matthew Butler-Hart / Holly Dale Spencer / Ben Lee

How Viewers Describe This Film

Common themes and sentiments

intriguing mind-bending experimental tense psychological ambitious confined fragmented resourceful deliberate ambiguous

Reviews

I
Isabelle Rossi
Mar 29, 2026
3.5 / 5
3.5

A fascinating experiment in filmmaking itself, 'Infinitum: Subject Unknown' was conceived and shot entirely on an iPhone during the UK's first lockdown. This inherent constraint imbues the film with a palpable sense of intimacy and urgency. Tori Butler-Hart…

A
Arthur Finch
Mar 29, 2026
2.5 / 5
2.5

While 'Infinitum: Subject Unknown' boasts an intriguing premise involving a time-loop experiment and a mysterious research centre, its execution is somewhat uneven. Tori Butler-Hart's portrayal of Jane is earnest, but the narrative struggles to maintain momentum. The film's…

G
Genevieve Dubois
Mar 29, 2026
4.0 / 5
4.0

This is a sci-fi thriller that punches above its weight, particularly given its unique genesis. 'Infinitum: Subject Unknown' is a testament to creative vision under constraint, shot entirely on an iPhone during lockdown. Tori Butler-Hart delivers a nuanced…

M
Marcus Thorne
Mar 29, 2026
3.0 / 5
3.0

'Infinitum: Subject Unknown' presents a cerebral puzzlebox, ambitious in its concept and resourceful in its production. Tori Butler-Hart carries the weight of the film, effectively conveying Jane's disorientation and growing resolve. The decision to film on an iPhone…

E
Eleanor Vance
Mar 29, 2026
3.5 / 5
3.5

Tori Butler-Hart anchors 'Infinitum: Subject Unknown' with a performance that evolves from bewildered victim to determined survivor. The film, a product of its time and shot entirely on an iPhone during lockdown, possesses a raw, intimate feel. While…

FAQs

Infinitum: Subject Unknown offers a more introspective and psychological take on science fiction, rather than relying on grand spectacle. The narrative is driven by Jane's internal struggle and her attempts to decipher the rules of her altered reality. While it features a sci-fi premise, the focus is on the character's journey of self-discovery and her fight for freedom against a system designed to control her.