Harley Quinn actor Margot Robbie describes her upcoming Birds of Prey spin-off as an "R-rated girl gang film." In an interview with Collider the actor-turned-producer said she began developing the project during the filming of Suicide Squad in 2015, and has very specific ideas for it.
“I pitched the idea of an R-rated girl gang film including Harley, because I was like, ‘Harley needs friends.’ Harley loves interacting with people, so don’t ever make her do a standalone film," Robbie said. "She’s got to be with other people, it should be a girl gang. I wasn’t seeing enough girl gangs on screen, especially in the action space. So that was always a big part of it."
Director Cathy Yan is reportedly in final negotiations to helm the Birds of Prey film, and Robbie confirmed those talks and said she was the "best director" for the project.
"And then of course having a female director to tell that story. And giving a female director the chance to do big budget stuff," said Robbie. "They always get ‘Here’s the tiny little film’… I was like, ‘I love action. I love action films. I’m a girl. What, are we meant to only like a specific thing’?” So it was a hugely important to find a female director for this, if possible. But at the end of the day - male, female - the best director gets the job and Cathy was the best director."
Warner Bros. has not confirmed Yan's hiring, or announced a release date for the film.