Other Side of L.A. by Babazim Miller - Drama - After a turbulent 1960s, residents in South Los Angeles deal with the creation and rise of the Crips and Bloods in the 1970s; two cousins jockey for position in their gang, but not always to the betterment of their family, community, or even themselves. 65 pages - pdf, format 8)

I recommend you read a dozen produced scripts in the genre you want to write, this will give you some direction on how to write, then read some screenwriting articles about format.