# Where to watch Infinitum: Subject Unknown (2021) in the UK

> Infinitum: Subject Unknown (2021) is currently available to stream in the UK on Amazon Prime Video and Amazon Prime Video with Ads. It can also be rented from Apple TV Store, Rakuten TV, Amazon Video, Google Play Movies, Sky Store, and YouTube or bought from Apple TV Store, Rakuten TV, Amazon Video, Google Play Movies, Sky Store, and YouTube. Last verified on 6 May 2026 by ScreenSearch.

**Type:** Film  
**Year:** 2021  
**Runtime:** 86 minutes  
**TMDB rating:** 5.4/10  
**Genres:** Science Fiction, Thriller, Mystery  
**Region:** United Kingdom (GB)  
**Last verified:** 6 May 2026 (2026-05-06T11:50:31.860Z)  

## Synopsis

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 reality or be stuck in a time-loop, destined to repeat the same test over and over again, with no memory of her doing it before. But with each 'reset' she starts to retain fragments of memory. With clues pointing to the mysterious Wytness Quantum Research Centre, she tries to find a way out.  (The film was shot entirely on an iPhone during the UK’s first lockdown.)

## Streaming options in the United Kingdom

### Stream (subscription)

- [Amazon Prime Video](https://www.amazon.co.uk/s?k=Infinitum%3A%20Subject%20Unknown&i=instant-video)
- [Amazon Prime Video with Ads](https://www.amazon.co.uk/s?k=Infinitum%3A%20Subject%20Unknown&i=instant-video)

### Free (with ads or TV licence)

- [Rakuten TV](https://rakuten.tv/uk/search?q=Infinitum%3A%20Subject%20Unknown)
- [Amazon Prime Video Free with Ads](https://www.amazon.co.uk/s?k=Infinitum%3A%20Subject%20Unknown&i=instant-video)

### Rent (typically 24-48 hours)

- [Apple TV Store](https://tv.apple.com/gb/search?term=Infinitum%3A%20Subject%20Unknown)
- [Rakuten TV](https://rakuten.tv/uk/search?q=Infinitum%3A%20Subject%20Unknown)
- [Amazon Video](https://www.amazon.co.uk/s?k=Infinitum%3A%20Subject%20Unknown&i=instant-video)
- [Google Play Movies](https://play.google.com/store/search?q=Infinitum%3A%20Subject%20Unknown&c=movies)
- [Sky Store](https://www.sky.com/search?q=Infinitum%3A%20Subject%20Unknown)
- [YouTube](https://www.youtube.com/results?search_query=Infinitum%3A%20Subject%20Unknown+film)

### Buy (digital download)

- [Apple TV Store](https://tv.apple.com/gb/search?term=Infinitum%3A%20Subject%20Unknown)
- [Rakuten TV](https://rakuten.tv/uk/search?q=Infinitum%3A%20Subject%20Unknown)
- [Amazon Video](https://www.amazon.co.uk/s?k=Infinitum%3A%20Subject%20Unknown&i=instant-video)
- [Google Play Movies](https://play.google.com/store/search?q=Infinitum%3A%20Subject%20Unknown&c=movies)
- [Sky Store](https://www.sky.com/search?q=Infinitum%3A%20Subject%20Unknown)
- [YouTube](https://www.youtube.com/results?search_query=Infinitum%3A%20Subject%20Unknown+film)

## Frequently asked questions

**Where can I stream Infinitum: Subject Unknown in the UK?**

Infinitum: Subject Unknown (2021) is currently included in subscriptions to Amazon Prime Video and Amazon Prime Video with Ads in the United Kingdom. Sign-in is required to play. Streaming licences change occasionally — ScreenSearch refreshes its data daily.

**How much does it cost to rent Infinitum: Subject Unknown?**

Rental prices vary by service and tier (HD vs 4K), typically £3.49 to £5.99 in the UK for a 48-hour rental. ScreenSearch links you straight to Apple TV Store, Rakuten TV, Amazon Video, Google Play Movies, Sky Store, and YouTube so you can check the current price.

**Can I buy a digital copy of Infinitum: Subject Unknown?**

Yes. Infinitum: Subject Unknown can be bought as a digital download from Apple TV Store, Rakuten TV, Amazon Video, Google Play Movies, Sky Store, and YouTube in the UK. A purchased digital copy lives in that storefront's library and stays available as long as the licence holds.

**Is Infinitum: Subject Unknown on Netflix, Disney+ or Amazon Prime Video in the UK?**

Infinitum: Subject Unknown is currently included with: Amazon Prime Video and Amazon Prime Video with Ads.

**How accurate is this film's availability data?**

Availability is sourced from The Movie Database (TMDB), which in turn pulls from JustWatch. Listings are refreshed daily. For purchase decisions, the provider's own site is the source of truth.

## Sources

- Streaming availability: The Movie Database (TMDB), refreshed daily.
- Underlying licensing data: JustWatch.
- Canonical URL: https://www.screensearch.co.uk/watch/movie/797861/infinitum-subject-unknown-2021
- Poster image: https://image.tmdb.org/t/p/w500/qrcqNcct1Y2bAUoVDQalMQZg29o.jpg
- JSON variant: https://www.screensearch.co.uk/watch/movie/797861/infinitum-subject-unknown-2021.json

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