A film titled Gotham City Sirens has been announced, with Margot Robbie and director David Ayer reportedly involved in the project. The movie is expected to feature a female-led cast and is believed to be a spinoff related to Harley Quinn, although details about the plot and release timing are unclear. There are also conflicting reports about the film's focus, with some outlets suggesting it will be a Joker-Harley Quinn movie, while others imply it will feature a broader group of female characters.