Would've been better if

If this film was called Harley Quinn, and the other girls weren't even in it. It could have picked up right after Suicide squad where the Joker breaks her out of jail. The first half could've been a Bonnie and Clyde type of story with them going on a crime spree, and the second half would start with the Joker getting killed and Harley going completely insane. She builds a crime empire then takes her vengence out on Gotham. Eventually Batman is forced to come in to deal with her. In fact just changing the name of the movie to Harley Quinn would most likely guarantee more revenue at the box office.