Breakaway Pop Hit: The soundtrack exposed a few songs, most notably The Cardigans' "Lovefool" and the choral version of "Everybody's Free (To Feel Good)" (nowadays known as "Wear Sunscreen").
Theme Tune Cameo: A version of The Love Theme from the 60's Franco Zefferelli adaptation plays in the background at one point.
What Could Have Been: Not only was Natalie Portman supposed to play Juliet before Claire Danes, but John Leguizamo wanted to play Mercutio, before being cast as Tybalt.
Claire Danes and DiCaprio were going to be reunited in Titanic, but Danes was too tired after shooting, so the role went to Kate Winslet instead.