"Leaving Port" is a song written and composed by James Horner for the film Titanic. It was also featured on the film's soundtrack. The song was featured in the film during the scene in which the Titanic leaves port. It should be noted that the film version of the song is more triumphant and has a faster tempo.
It should be noted that the song was originally meant to score Jack and Fabrizio running to the ship after winning third-class tickets from a game of poker just before she departs on her maiden voyage. But only a small section of it was used in the final film, with parts replaced by the OST version of Southampton and music tracked from the TV film Heaven Help Us.