I'm The King of The World
One of the most memorable moments in the film is when Jack proclaims he is "the king of the world" with a triumphant shout. This line was not scripted, but spontaneously uttered by James Cameron. It shows how Jack is a person who lives in the present and enjoys every moment of life.
The quote is a hyperbolic expression of joy, freedom and triumph. Jack Dawson, a poor and adventurous young man, utters these words as he stands on the bow of the Titanic, feeling the wind and the ocean spray on his face. Jack has just won a ticket to board the ship in a poker game, and he sees this as an opportunity to start a new life in America. He also feels a sense of exhilaration and defiance, as he has escaped from his oppressive and miserable past in England. Jack is not literally claiming to be a monarch, but rather expressing his emotions and aspirations in a metaphorical way.
