Is the character Harley Quinn, introduced in the 90s Batman cartoon, based on a slightly similar character Alicia Hunt from the '89 Batman movie? Both are blonde, masked paramour of the Joker, both "fall" out a window in their introductory stories. Is Harley based on Alicia?
I'm looking for sourced information, word of God of DC, Tara Strong, Bruce Timm, Mark Hamill, anyone actually connected with Batman cartoons, movies or comics, or even credited researchers. Not idle speculation.