[Dragan is threatening XXXX over the phone.]
XXXX: Dragan, I've got an idea. Why don't you come round for breakfast? I'll squeeze some orange juice and grind some coffee and we can talk about this like adults. How does that sound?
Dragan: Sounds very hospitable.
XXXX: Do you know where I live?
XXXX: Well fuck off, then.
When Gene's bodyguard (the one with the moustache) shoots Slasher and Duke, just before Slasher is shot the bullet hole effect is visible on her forehead (sightly concealed by make-up) just before the actual 'shot'.
In the final scene were XXXX is in the Park club dining with Trever, Morty, Gene, and Clarkey there is a shot outside the room looking in where XXXX is standing and the others are raising their glasses to him. This is similar to the final scene in 'The Godfather'. This is said during the director's commentary.