Gotham City Sirens: Margot Robbie to return as Harley Quinn alongside Catwoman and Poison Ivy

Margot Robbie's portrayal of Harley Quinn, The Joker's quasi-girlfriend turned supervillian in her own right, was one of the highlights of Warner Bros. Pictures' Suicide Squad. Her impact was so great that David Ayer is looking to reteam with the Australian actress for a movie entitled Gotham City Sirens, which will see her take centre stage.

Inspired by the recent DC Comics series of the same name, the movie will likely see Harley team up with fellow female characters Catwoman and Poison Ivy, as the trio face off against numerous criminals and corrupt officials in Gotham . According to The Hollywood Reporter, Tomb Raider's Geneva Robertson-Dworet is currently adapting the comic book written by Paul Dini and Guillem March, working from a rough draft initially penned by Christina Hodson (Shut In).

Geoff Johns and Jon Berg will produce, working under DC Entertainment, alongside Ayer. Robbie is also acting as executive producer.

While Robbie's debut as Harley in Suicide Squad was the first time the character had been seen on the big screen, both Catwoman and Poison Ivy have already been portrayed in movies before. Lee Meriwether, Michelle Pfeiffer, Halle Berry and Anne Hathaway have all starred as Selina Kyle's leather-clad alter ego in cinema releases.

Uma Thurman famously brought red-haired ecoterrorist Dr. Pamela Lillian Isley to life in Joel Schumacher's not-so-popular Batman & Robin opposite George Clooney. In television series Gotham, Camren Bicondova and Maggie Geha play younger versions of Catwoman and Poison Ivy (known as Ivy Pepper in the show).

Meanwhile, Warner Bros are currently said to be developing a Suicide Squad spin-off surrounding Will Smith's character Floyd Lawton, aka Deadshot.

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