Warner Bros. has partnered with Margot Robbie to produce a full spin-off movie of Harley Quinn. The 26-year-old Australian actress will not only star as the titular character, but will also serve as an executive producer.

Robbie has signed a "first-look" deal with Warner Bros., permitting them the rights to create and deliver films through her production house LuckyChap Entertainment, The Hollywood Reporter reported.

The untitled "Harley Quinn" spin-off movie will reportedly feature other DC female heroines and villains. It is said that the studio giant needs to concentrate on stories that are more female-driven.

Details about the "Harley Quinn" spin-off has been kept secret. What is known about the project is that its concept initially came out from Robbie herself.

Robbie, who made her big screen debut in Richard Curtis' "About Time," portrayed Dr. Harleen Quinzel, also known as Harley Quinn, in David Ayer's "Suicide Squad." Robbie's character is described as a crazed supervillain and one of the Squad's most manipulative members.

After starring in the hit superhero film, Robbie seemingly got intrigued by Harley Quinn. After reading about the fictional supervillain, Robbie reportedly developed to like DC's other female characters and went to Warner Bros to pitch it.

In spite of the fact that it stays misty as to which characters will appear alongside Robbie, speculations are rife that Batgirl and other members of the "Birds of Prey" comics will be featured in the untitled "Harley Quinn" spin-off movie.

Apart from Robbie, other producers include LuckyChap's Sophia Kerr, Josey McNamara, and Tom Ackerley. More details about the untitled "Harley Quinn" spin-off movie will be revealed soon.

Meanwhile, Robbie is attached to star in "Queen of the Air," an upcoming film adaptation of Dean N. Jensen's novel of the same name, Screen Crush has learned. The upcoming period love drama will be produced by Andrew Lazar, based on a script penned by Cat Vasko.

Be sure to stay tuned here for more news and updates about the untitled "Harley Quinn" spin-off movie.