Two months after teasing fans with the full title of her Harley Quinn standalone film, Margot Robbie is back in full costume on the set of Birds of Prey ... weeks while the movie was shooting.

In February, Margot Robbie will return as Harley Quinn in Birds of Prey, an all-female supervillain movie co-starring Ali Wong and Mary Elizabeth Winstead. The action film finally has a trailer ...

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That was her motivation for making Birds of Prey her next project, even though Robbie, 29, had two movies in development that featured her Suicide Squad character Harley Quinn. “During Suicide ...

ET was with Robbie at the London premiere of her new movie. ET's Rachel Smith spoke with Mary Elizabeth Winstead at the London premiere of 'Birds of Prey,' in theaters Feb. 7. ET's Rachel Smith ...