Nina's hair changes when talking to Darius after their first date.
Darius and Savon are playing pool then I can see neither one of them aren't shooting in order and at the end of the scene Savon shoots the eight ball ending the game while all the balls are still on table.
Nina and Darius enter his apartment building, then his apartment. Once, inside , she begins to photograph Darius. Where did the camera come from? She clearly didn't have a camera when she entered the building.
Darius finds Nina's address from a personal check. In the next scene when Nina allows Darius to enter her home she tells him she's "Housesitting".