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- Breakaway Pop Hit: Popular songs that debuted in the soundtrack to this film include:
- "Iris" by the Goo Goo Dolls
- "Uninvited" by Alanis Morissette (her first single release of any kind since Jagged Little Pill, making it hugely anticipated)
- "Angel" by Sarah McLachlan (originally an album-only track on her 1997 album Surfacing)
- Enforced Method Acting: The rooftop scene with Dennis Franz and Nicolas Cage sitting on scaffolding high above the city was shot for real. Both actors were afraid of heights.
- What Could Have Been: Johnny Depp was originally considered for the male lead.
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- Colbert Bump: The musical gained some recognition thanks to Xander Mobus and Robbie Daymond covering "You're Nothing Without Me"
in-character as Joker and Akechi.
