The Professor and the Madman (2019) is a historical drama based on the true story behind the creation of the Oxford English Dictionary. Directed by Farhad Safinia, the film explores the unlikely collaboration between two men: Professor James Murray, the head of the OED project, and Dr. William Chester Minor, a brilliant but troubled man who contributed thousands of words to the dictionary while confined in an insane asylum.

The film is set in the late 19th century and focuses on the life of Professor James Murray (played by Mel Gibson), who is tasked with compiling the Oxford English Dictionary, one of the most ambitious intellectual projects of its time. As Murray begins his work, he receives thousands of words and definitions from Dr. William Chester Minor (played by Sean Penn), an American surgeon who is confined to an asylum for murder. Minor, suffering from severe mental illness, is an incredibly talented and knowledgeable man, but his condition and the tragic events of his past shape the relationship between him and Murray.