In Titanic, what does Jack Dawson shout from the ship's bow?

In Titanic, Jack Dawson shouts, “I'm king of the world!” from the ship's bow.

The moment occurs early in James Cameron's 1997 film, after Jack wins passage on RMS Titanic in a poker game. He stands at the front of the departing ship and celebrates the sense of possibility created by his journey to America.

Leonardo DiCaprio plays Jack, a fictional third-class passenger who becomes close to Rose DeWitt Bukater, played by Kate Winslet. The line became one of the film's signature moments and is often associated with the wide bow shot.

Titanic combines fictional central characters with the real 1912 disaster. The ship struck an iceberg on 14 April 1912 and sank in the early hours of 15 April, but Jack's shouted declaration is a scripted cinematic line, not a historical quotation.