I loved everything about this movie. The cinematography, the acting, the true nature of the story, and the wonderful chemistry between the two stars.
Lionel Logue is a speech therapist. He has a job to do and wastes no time on formalities. So when the King of England shows up at his office needing help, he's not going to bow or say 'your highness' or anything, he's going to get to work. However King George VI, or Bertie, never really expected to be king. He has a speech impediment and stammers something awful whenever he makes a speech. How is anyone supposed to take him seriously as a leader?
Bertie had hoped his brother would become king instead, but he abdicated the throne for his true love. So now Bertie is definitely going to be king. So he really needs Lionel's help in order to speak properly. Lionel has some rather unorthodox methods, and there is a lot of tension in the beginning stemming from their differences in status.
But soon they become best friends and through hard work, Bertie carefully works through his stammer to make important speeches during the war. Every time he made a speech, Lionel was right there with him. Film gets a 10/10.