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.
Asa Butterfield
Rafe Spall
Sally Hawkins
Eddie Marsan
Jo Yang
Alex Lawther
Alexa Davies
Martin McCann
Orion Lee
Jake Davies
Paul J. Dove
Percelle Ascott
Christina Low
Edward Baker-Close
Suraj Rattu
Jamie Ballard
Clare Burt
Adam Foster
Lee Zhuo Zhao
Shannon Beer
Tasha Connor
Bo-Han Huang
Song-Hung Chang
Lawrence Jeffries
Ciaran Wakefield