Quote from : The Hobbit: The Desolation of Smaug Movie

Thorin Oakenshield: Here! You witless worm!
Smaug: YOU!
Thorin Oakenshield: I'm taking back what you stole.
Smaug: You will take NOTHING from me, dwarf. I laid low your warriors of old. I instilled terror in the hearts of men. I AM KING UNDER THE MOUNTAIN!
Thorin Oakenshield: This is not your kingdom! These are dwarf lands. This is dwarf gold! And we will have our revenge!