John Williams is a remarkable composer and his love theme for this movie is remarkable in of itself. The one thing I noted though....
Was how it was almost similar to the theme music James Horner created for the song, "Secret Wedding". Listen carefully to the music.
I am not saying Williams stole Horner's music nor do I think Horner steals music from others. Sonetimes it just works out that way. "The Simpsons, and The Jetsons," both use the first three notes.
There is only so much music a composer can think of, and I don't think Williams intentionally stole from Horner. In the end, we should recognize how astonishing the music sounds, not who stole from who, otherwise music would not be appreaciated!

Signed, Trevor