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
ProducersDavid M. Thompson·Laura Hastings-Smith

Where to watch

Amazon Prime VideoAmazon Prime VideoAmazon Prime Video with AdsAmazon Prime Video with AdsThe CWThe CWKanopyKanopyHooplaHooplaDarkroomDarkroomThe Roku ChannelThe Roku ChannelPluto TVPluto TVYouTube FreeYouTube FreePlexPlexPlex ChannelPlex ChannelTubi TVTubi TV
Availability shown for United States · rights vary by country

Cast · Directed by Morgan Matthews

ABAsa Butterfield
Asa Butterfield
Nathan Ellis
RSRafe Spall
Rafe Spall
Martin Humphreys
SHSally Hawkins
Sally Hawkins
Julie Ellis
EMEddie Marsan
Eddie Marsan
Richard
JYJo Yang
Jo Yang
Zhang Mei
ALAlex Lawther
Alex Lawther
Isaac Cooper
ADAlexa Davies
Alexa Davies
Rebecca Dunn
MMMartin McCann
Martin McCann
Michael Ellis
OLOrion Lee
Orion Lee
Deng Laoshi
JDJake Davies
Jake Davies
Luke Shelton
PDPaul J. Dove
Paul J. Dove
John
PAPercelle Ascott
Percelle Ascott
Ben Morgan

More from Asa Butterfield · Lead actor

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Miss Peregrine's Home for Peculiar Children
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Nanny McPhee and the Big Bang
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Unchosen
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Ashes to Ashes
Ashes to Ashes
2008 · 7.7
See all fromAsa Butterfield

More from Rafe Spall · Co-star actor

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More from Morgan Matthews · Director

500 Miles
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Gypsy Boy
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The Railway Children Return
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2022 · 6.5
When Harry Left Hogwarts
When Harry Left Hogwarts
2011 · 7.2
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Williams
2017 · 7.4
Britain in a Day
Britain in a Day
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Shooting Bigfoot
Shooting Bigfoot
2013 · 6.8
This Was My Dad: The Rise & Fall of Geoffrey Matthews
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2017 · 6.0
Beautiful Young Minds
Beautiful Young Minds
2007 · 6.9
Taxidermy: Stuff the World
Taxidermy: Stuff the World
2005 · 6.5
See all fromMorgan Matthews

More like this

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The Man Who Knew Infinity
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1997 · 8.2
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1998 · 7.1
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X+Y — streaming FAQ

Which OTT platform streams X+Y?

X+Y is streaming on Amazon Prime Video, The CW and Kanopy 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 September 2026. It's currently on Amazon Prime Video and The CW.

Is X+Y on Amazon Prime Video?

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