The melody comes from Titanic, the 1997 film whose romantic theme became one of the most recognisable pieces of film music in the world. Originally performed as a sweeping orchestral and vocal ballad, it has since been reinterpreted on countless instruments, including the flute, in covers shared across video platforms and social media. Short instrumental versions like this one are popular because they carry the film's emotional association without lyrics, making them easy to drop into edits, memes, and montages that need instant nostalgia or gentle drama.