George had a speech problem, a stutter. This made it very difficult for him to carry out many of the public duties of a king which required him to make speeches. He was treated by an Australian speech and language therapist called Lionel Logue. The story of this part of George's life was made into a movie in 2010 called "The King's Speech". Colin Firth played the role of George, and Geoffrey Rush played the role of Logue.