DC have announced Harley Quinn is getting her own Batman spin-off solo movie and also revealed the comic arc that will be adapted for the screen.

Margot Robbie, last seen as the baseball-bat wielding Joker-obsessing villain in Suicide Squad, will star in the film adaptation of Gotham City Sirens.

The comic book finds Harley Quinn living with Poison Ivy, as girlfriends, until they decide to kidnap Catwoman in a bid to discover Batman’s true identity.

It is explicitly romantic in the book, with Ivy being the only thing stopping Harley from getting back into her bad romance with the Joker.

At one point, Harley asks Ivy: ‘Is it because you love me?’

DC officially confirmed the characters are ‘girlfriends without the jealousy of monogamy’.

The new Harley Quinn film could be the beginning of real explicit LGBTI representation in superhero movies, so far non-existent in both DC and Marvel movies.

Wonder Woman, which will be released in 2017, will not feature any hint towards the Amazonian warrior’s bisexuality.

However Gal Gadot, who will be playing Wonder Woman, said she hoped to have a female love interest in future movies.