* BreakawayPopHit: 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 [[SampledUp "Wear Sunscreen"]]).
* DawsonCasting: Originally the 14 year old Creator/NataliePortman was cast as Juliet, but the director thought that the much older Leonardo [=DiCaprio=] looked like he was "molesting her", so the [[TheOtherMarty 16-year old Claire Danes was hired instead]]. Danes was only three years older Juliet.
* HostilityOnTheSet: Creator/ClaireDanes and Creator/LeonardoDiCaprio initially did not get along well on set. Danes accused [=DiCaprio=] of being immature, while [=DiCaprio=] said Danes was just uptight.
* StarMakingRole: For [=DiCaprio=] and Danes, at least before ''Film/Titanic1997'' really pushed the former to superstardom.
* ThemeTuneCameo: A version of "The Love Theme" from the 1968 Franco Zefferelli adaptation plays in the background at one point.
* UnintentionalPeriodPiece: This is a ''very'' 90s kinda movie, stylistically and visually.
* WhatCouldHaveBeen:
** Creator/NeilPatrickHarris was considered for Romeo.
** Music/{{Aaliyah}}, Creator/SarahMichelleGellar, Creator/JenniferLoveHewitt, Creator/ChristinaRicci and Creator/KateWinslet were considered for Juliet. Gellar's commitment to ''Film/AllMyChildren'' interfered, and Hewitt was considered too youthful-looking.
** Creator/ChristianBale, Creator/JohnLeguizamo, Creator/EwanMcGregor and Creator/SamRockwell auditioned for Mercutio before Creator/BazLuhrmann decided to make him black.
** Creator/BenicioDelToro was considered for Tybalt.
** Creator/MarlonBrando expressed interest in playing Father Laurence, but personal family problems took him out of the running.
** Claire Danes and [=DiCaprio=] were going to be reunited in ''Film/{{Titanic 1997}}'', but Danes was too tired after shooting, so the role went to Creator/KateWinslet instead.
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