8th DCEU entry and 7th success of the franchise alongside MOS,BVS,SS,WW,AM and Shazam. Continues after SS in which Harley leaves the Joker (Leto) to branch out on her own in Gotham City. The movie is a Solo movie for Harley Quinn, a group origin of the formation of the Birds Of Prey with Huntress and Canary on top of a villain origin for Black Mask and Victor Zasz. R-rated classification for the characters that need it for them to be there true selves.
Those expecting this to be an MCU copy like Josstice League will be in for a shock, it has F-Bombs, blood splatters, ultra violence, entertaining and not for kids. Sets up Gotham City Sirens perfectly and continues the expanding world of the DCEU.