21 (2008) is available on Netflix which requires a subscription.

Where can I watch 21 in the UK?

21 (2008) is available to stream on Rakuten TV, Netflix in the UK.

Yes, 21 (2008) is currently available to stream on Netflix UK.

Yes — it's on Netflix

Available to stream now

21 (2008)

PG-13Astrology, Crime, Drama· 2h 3m· ★ 6.8

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Also available on

Rakuten TV

About

Inspired by real events and people, 21 is about six MIT students who become trained to be experts in card counting in blackjack and subsequently took Vegas casinos for millions in winnings.

Full details for 21

Frequently Asked Questions

Is 21 free to watch?: 21 is available on Netflix, which requires a subscription.
Where can I watch 21 in the UK?: 21 is available to stream on Rakuten TV, Netflix in the UK.
Is 21 on Netflix UK?: Yes, 21 is currently available to stream on Netflix UK.