The producers went through normal channels to try to obtain the rights to include a piece of the title song from the musical Jesus Christ Superstar (1973), but all their requests were denied. Finally, a friend gave them Tim Rice's personal phone number, and after seeing and loving the movie, Rice agreed to grant them the right to use the song.
All the prom songs performed by the Christian rock band Godflight were actually by The Replacements, a rock band from the 1980s.
The woman who coached Mandy Moore and Eva Amurri on speaking in tongues gave them several phrases that they could repeat, including "she bought a Hyundai" and "untie my bow tie."
'Saved!' was reworked into a stage musical (with the same title, minus the exclamation point), which premiered for a limited run in 2008 in New York City, to mixed reviews. Music was by Michael Friedman and book and lyrics by John Dempsey and Rinne Groff.
The Hebrew writing on Cassandra's necklace (visible during the Christmas food court scene) says "Cassandra."