Where to watch I Know What You Did Last Summer (2021) in the UK
I Know What You Did Last Summer (2021) is currently available to stream in the UK on Amazon Prime Video and Amazon Prime Video with Ads. Last verified on 3 May 2026 by ScreenSearch.
No one is safe.
In a sun-soaked Hawaiian town with a mysterious past, a group of friends is left with a dark secret after a tragic accident. One year later, a member of the group receives a threatening message, and the friends now know that someone intends to make them pay for last summer.
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Official Trailer
Streaming options in the United Kingdom
Updated daily from The Movie Database. Outbound links open the provider directly.
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Included with these subscription services in the UK.
Last verified: — sourced from The Movie Database. Machine-readable: Markdown · JSON.
Cast & crew
Top-billed cast in I Know What You Did Last Summer.
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Madison IsemanLennon / Alison -
Bill HeckBruce -
Brianne TjuMargot -
Zeke GoodmanDylan -
Ashley MooreRiley -
Fiona ReneLyla -
Cassie BeckCourtney -
Brooke BloomClara
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I Know What You Did Last Summer — frequently asked questions
Where can I stream I Know What You Did Last Summer in the UK?
I Know What You Did Last Summer (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.
Are all seasons of I Know What You Did Last Summer on the same service?
Not always — TV licensing is sometimes negotiated season by season. ScreenSearch shows availability across all seasons on the title's page; for season-specific availability, look at the season picker inside the search dialog.
Is I Know What You Did Last Summer on Netflix, Disney+ or Amazon Prime Video in the UK?
I Know What You Did Last Summer is currently included with: Amazon Prime Video and Amazon Prime Video with Ads.
How accurate is this TV series'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.
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