The stick-up guys were cast when Charlie Ahearn saw them hanging around the location. Ahearn offered them a prop gun but they insisted on using their real sawed-off shotgun. All of their lines were improvised.
Most of the dialog was improvised. This became abundantly clear to Lady Pink when she took her mother to see the film and was appalled by the prevalence of the word "fuck."
The graffiti-style logo featured in the film's advertising was a massive mural painted on a wall in the Bronx by Zephyr, Revolt, and Sharp and is still displayed where it was drawn originally.
The cast is populated with genuine figures from the hip-hop movement as opposed to actors.
Most of the footage was filmed during the late fall of 1981 into early 1982. It took the producers almost a year to get it released.