AllMovie

A shy math whiz kid finds a highly rewarding outlet for his skills in this inspiring and humorous drama. Teenager Nathan Ellis (Asa Butterfield) finds it difficult to interact with his peers socially, but is able to solve complex math problems with ease. Nathan's math prowess earns him an invitation to join the British team at the International Mathematics Olympiad, and gives him a whole new venue to showcase his abilities. The film co-stars Rafe Spall, Sally Hawkins and Eddie Marsan.