Quick teaser trailer for Birds of Prey (And the Fantabulous Emancipation of One Harley Quinn) shows Margot Robbie as Harley Quinn.
After splitting up with The Joker, Harley Quinn and three other female DC Comics characters -- Black Canary, Huntress and Renee Montoya -- come together to save the life of a little girl, Cassandra Cain, from an evil crime lord, the Black Mask.