2001 • Russell Crowe
A Beautiful Mind tells the story of John Nash, a brilliant mathematician who makes groundbreaking contributions to game theory, only to descend into severe paranoid schizophrenia before eventually winning the Nobel Prize.
The film’s primary way of visualizing Nash’s hallucinations — his friendly roommate Charles and his niece Marcee — are completely invented. Nash had no such roommate or niece in real life.
The movie’s central dramatic engine — Nash working secretly for the Department of Defense to break Soviet codes — is completely invented. Nash never did any such covert work.
The film portrays Nash and Alicia’s relationship and his eventual recovery in a highly idealized, straightforward manner. In reality, they divorced in 1963 due to the severe strain of his illness and only remarried decades later; his recovery was long, nonlinear, and far more complex.
The film leaves out important aspects of Nash’s life, including his earlier relationships and an illegitimate son with Eleanor Stier, simplifying his personal history significantly.