I don't think Harley should be portrayed on film...nor do i think she ever will be. I think it's best we leave that character alone and in the classic animated series. She was great and by far one of my favorites, and the only series she would have fit would have been the Burton movies. But sadly, he had to kill off the Joker. Lets just be glad Joel didnt try and bring back the Joker and use Harley as his daughter instead of his lover/side kick.