X+Y

X+Y unfolds across several settings: starting in Sheffield where Nathan attends a specialized maths program, moving to Cambridge for the Olympiad, and including a two‑week maths camp in Taiwan. The cityscapes and campuses ground Nathan's journey from local schooling to global competition. Each location contributes to the film's focus on growth, challenge, and cross‑cultural exchange.

🧠 Neurodiversity

Nathan's autism spectrum informs how he experiences school, interaction, and pressure, while his immense mathematical ability shows how different minds contribute to success. The story uses his perspective to explore empathy, inclusion, and the value of diverse thinking. His journey with Zhang and mentors reveals how understanding can unlock potential beyond conventional social norms.

🎓 Mentorship

Martin Humphreys acts as a patient, dedicated mentor who sees his younger self in Nathan. His battle with multiple sclerosis adds urgency and resilience to his guidance. Through tailored challenges and quiet encouragement, he helps Nathan grow, believe in himself, and pursue the Olympiad. Their bond highlights the transformative power of mentorship in unlocking talent.

💔 Loss & Healing

Nathan's father's death casts a long shadow over his early life and ambitions. The emotional overload at the Olympiad becomes a moment where grief surfaces alongside performance pressures. Julie's steadfast support and Zhang Mei's understanding provide a path from pain to balance. The film frames grief as something that can be carried, shared, and transformed through connection.

💞 Connection & Growth

Zhang Mei's arrival introduces a cross-cultural friendship that reshapes Nathan's approach to math and relationships. Her presence helps him interpret social cues, express vulnerability, and accept the possibility of affection. The Cambridge journey becomes as much about personal balance as about the test score. Their bond shows how genuine connection can help someone face fears and reach new heights.