Sissel sang the score through the whole movie, not only the overture. In fact, Sissel was very close to singing the title song «My heart will go on» James Horner said the following: "When I finished Titanic, I had to decide on Celine Dion or Sissel. Sissel I was very close with, while Celine had known me since she was 18, and for which I had already written three movie songs. But that was before Celine became known and the filmmakers and marketers had not done what they should have done for Celine and the songs. So I felt I owed her a Titanic chance, but I could have used Sissel there. " Sissel would’ve been a big world star if she got to sing that song, but Sissel has later said she was glad she didnt get it, cause she wasnt willing to give up her life and move to America, She had a small child then... and she was happy she got to sing the score through the whole movie.