X+Y poster
Where to stream

X+Y

6.720141h 51mNRMovieDrama

Struggling to connect with those around him, a teenage math prodigy trains for the International Mathematical Olympiad, where a budding romance with a fellow contestant breaks through his emotional walls and teaches him that love cannot be calculated.

DirectorMorgan Matthews
WritersJames Graham·Morgan Matthews
ProducersLaura Hastings-Smith·David M. Thompson

Where to watch

Amazon Prime VideoAmazon Prime VideoAmazon Prime Video with AdsAmazon Prime Video with Ads
Availability shown for United States · rights vary by country

Cast · Directed by Morgan Matthews

Asa Butterfield
Asa Butterfield
Nathan Ellis
Rafe Spall
Rafe Spall
Martin Humphreys
Sally Hawkins
Sally Hawkins
Julie Ellis
Eddie Marsan
Eddie Marsan
Richard
Jo Yang
Jo Yang
Zhang Mei
Alex Lawther
Alex Lawther
Isaac Cooper
Alexa Davies
Alexa Davies
Rebecca Dunn
Martin McCann
Martin McCann
Michael Ellis
Orion Lee
Orion Lee
Deng Laoshi
Jake Davies
Jake Davies
Luke Shelton
Paul J. Dove
Paul J. Dove
John
Percelle Ascott
Percelle Ascott
Ben Morgan

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X+Y — streaming FAQ

Which OTT platform streams X+Y?

X+Y is streaming on Amazon Prime Video in United States, and available to rent or buy on Amazon Video and Apple TV Store. It's not currently on Netflix.

Is X+Y on Netflix?

No, X+Y is not on Netflix in United States as of August 2026. It's currently on Amazon Prime Video.

Is X+Y on Amazon Prime Video?

Yes — X+Y is included with an Amazon Prime Video subscription in United States as of August 2026.

Where can I watch X+Y for free?

X+Y is available to stream free (with ads) on The CW and Kanopy in United States.

Is X+Y based on a true story?

Yes — X+Y is based on true events, dramatising real people and events (some details may be fictionalised for the screen).