True genius and madness, often cited together and this film shows the true story of a man who used his genius to inhibit the hallucinations of his active, uncontrolled schizophrenia to go on and win a Nobel prize in mathematics. It is also a film showing good friends and the power of love plus the fortitude of marital commitment. A true story, brilliantly portrayed by a film and actors. Russel Crowe is magnificent.