Mathematics prodigy Nathan (Asa Butterfield) is a socially awkward teenager who has difficulty understanding people. Numbers, however, he does understand, and when he lands a spot in the British team at the International Mathematics Olympiad he gets the chance to make new friends and find new confidence. Also starring Rafe Spall, Sally Hawkins and Eddie Marsan, X+Y is in cinemas from Thursday, April 9. We have 10 passes to give away.
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