Birds of Prey by DC Comics
It's based on the Harley Quinn & Birds of Prey comics.
Synopsis:
In Gotham City, the Joker breaks up with Harley Quinn and without his protection, several criminals that have beefed with her hunt her down. When the teenager Cassandra Cain pickpockets a diamond that has the account numbers of a fortune from the gangster Victor Zsasz, who is the right hand of the powerful criminal Roman Sionis, he puts a contract on her. Herley Quinn, Police Detective Renee Montoya, Helena "The Huntress" Bertinelli and Dinah "Black Canary" Lance team up to protect Cassandra.
Recommendation:
An action, crime and a little bit of comedy are all combined in this film. Follow Harley Quinn and his new friends on their first adventure together.