The Madness of King George is a 1994 British biographical comedy drama film directed by Nicholas Hytner and adapted by Alan Bennett from his own 1991 play The Madness of George III. It tells the true story of George III of Great Britain's deteriorating mental health, and his equally declining relationship with his eldest son, the Prince of Wales, particularly focusing on the period around the Regency Crisis of 1788–89. Two text panels at the end of the film note that the colour of the King's urine suggests that he was suffering from porphyria, adding that the disease is "periodic, unpredictable and hereditary."

Rupert Simeon Graves is an English film, television, and theatre actor. He is known for his roles in A Room with a View, Maurice, The Madness of King George and The Forsyte Saga. From 2010 to 2017 he starred as DI Lestrade in the BBC television series Sherlock.