Chosen Sub-Genre and it's Conventions

In Media Studies, we are planning our Sequence that we will soon be making.
Me and the rest of my Media group have decided on the Sub-genre for our film clip. Our sub-Genre is American Gangster.
American Gangster Conventions typically involve having dark lighting, Italian americans, Cigarettes/Cigars, Tuxedo's, upper-class characters, guns, low-key lighting, and very often the effect of sun light beaming through the slits of blinds...often in an office environment.
This is the sub-genre we have chosen to follow.