This The King's Speech photo contains
business suit, suit, suit of clothes, dress suit, full dress, tailcoat, tail coat, tails, white tie, and white tie and tails.
There might also be
two piece, two piece suit, lounge suit, single breasted suit, and double breasted suit.
H.M. King George VI's broadcast speech to the British Empire from Buckingham Palace on September 3rd, 1939. The speech given in the film is pretty close to the real one.