Specifically when the film's new title Gotham City Sirens - based on the recent comic series - promises a female-led team-up movie pitching together some of DC's most iconic female villains, specifically the likes of Poison Ivy and Catwoman.

Both feature prominently alongside Harley in Sirens, with Ayer himself tweeting a picture of the trio to seemingly confirm all three will be involved. And now, rumours are already circulating that Megan Fox is being eyed for the Poison Ivy role.

Though strictly a rumour for now, Bleeding Cool has at least shown their working in this case; Fox, who is a self-confessed comic book fan and has already professed an interest in playing the role, has also been receiving some interesting packages at her Warner Bros. studios address.

Specifically, two comic books ordered online from the pre-52 Harley Quinn series, both of which feature Poison Ivy in a fairly prominent role.

Suicide Squad Extended Cut Trailer

Even if this is all true, we're very far from Fox putting pen to paper and confirming the role; these are extremely early days yet, and the actress may simply be doing some extra research to tighten up a potential bid for the part.