For one thing, Harley has rarely if ever been a member of Birds of Prey, whose classic lineup includes Oracle/Batgirl, who isn’t even in the film at all.
If you find more, let us know on Twitter; and keep checking ScreenCrush for lots more about Birds of Prey…
This is a movie, and while it’s certainly indebted to DC Comics, it’s definitely it’s own thing.
Here are ten of our absolute favorites, in roughly chronological order to when they appear in the movie.