X+Y
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.
Where to stream X+Y
Streaming now in the United States on Amazon Prime Video, The CW, Kanopy, Hoopla, Darkroom, and The Roku Channel.
Rent or buy in the United States on Amazon Video, Apple TV Store, Google Play Movies, YouTube, and Fandango At Home.
Trailers and promos
Official US Trailer
Trailer
Official UK Trailer
X+Y Trailer | Festival 2014
:30 Spot
UK TV Spot
30 Second Teaser
Cambridge
Limelight
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Frequently asked questions about X+Y
Where can I watch X+Y in the United States?
X+Y is available to stream on Amazon Prime Video, The CW, Kanopy, Hoopla, Darkroom, and The Roku Channel in the United States, and to rent or buy on Amazon Video, Apple TV Store, Google Play Movies, YouTube, and Fandango At Home. Streaming availability is provided by JustWatch and can change over time.
Is X+Y on Amazon Prime Video?
Yes. X+Y is streaming on Amazon Prime Video in the United States, alongside The CW, Kanopy, Hoopla, Darkroom, and The Roku Channel.
Can I watch X+Y for free?
X+Y streams free with ads in the United States on The CW, Kanopy, Hoopla, and Darkroom. A subscription is not required, though the service may ask you to register.
What are the ratings for X+Y?
X+Y scores 6.7 on The Movie Database.
Who stars in X+Y?
X+Y stars Asa Butterfield, Rafe Spall, Sally Hawkins, Eddie Marsan, and Jo Yang. Morgan Matthews is the director.
How long is X+Y?
X+Y runs 1h 51m (111 minutes).
When did X+Y come out?
X+Y was released on March 13, 2015.
Which studio made X+Y?
X+Y was produced by Original Pictures, Head Gear Films, and Minnow Films in the United Kingdom.
How much did X+Y make at the box office?
X+Y grossed $1,043,620 worldwide.
Ratings and metadata from The Movie Database (TMDB), streaming data from JustWatch. This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability checked October 2026.