X + Y

When I am around her my brain works differently.

    X + Y Synopsis

    Preferring to hide in the safety of his own private world, Nathan struggles to connect with people, often pushing away those who want to be closest to him, including his mother, Julie. Without the ability to understand love or affection, Nathan finds the comfort and security he needs in numbers and mathematics. Mentored by his unconventional and anarchic teacher, Mr Humphreys, it becomes clear that Nathan’s talents are enough to win him a place on the British team competing at the highly revered International Mathematics Olympiad. Being part of a team and one which has a real chance of winning seems like it could change Nathan’s life forever. But when the team go to train in Taiwan, Nathan is faced with a multitude of unexpected challenges, not least the new and unfamiliar feelings he begins to experience for one of the Chinese competitors, the beautiful Zhang Mei. From England to Taipei and back again, this inspiring and life-affirming story follows the unconventional and hilarious relationship between student and teacher, whose roles are often reversed, and the unfathomable experience of first love – when you don’t even understand what love is.

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    Asa Butterfield, Rafe Spall, Sally Hawkins, Eddie Marsan, Jo Yang


    Morgan Matthews


    Laura Hastings-Smith, David M. Thompson


    James Graham

    Executive Producers:

    Christine Langan, Joe Oppenheimer, Lizzie Francke, Phil Hunt, Compton Ross, Hugo Heppell, Norman Merry, Peter Hampden

    Sales agent:

    Bankside Films



    Credits summary:

    BBC Films and BFI present in association with Head Gear Films and Metrol Technology, Screen Yorkshire and LipSync Productions An Origin Pictures/Minnow Films Production



    Running time:

    109 mins

    Release Dates


    13 March 2015

    Out on DVD

    13 July 2015