The exteriors, including the final climactic scene, of this movie were actually filmed on City Island, Bronx. 1 Horton Street, the house in the film is visible on online satellite maps.
The watchword "Botero" is a reference to Colombian sculptor/painter Fernando Botero, famous for depicting very large men and women in his work.
Andy Garcia's character can be heard yelling the name "Manny" when addressing the stunt coordinator on the set of the film within a film. In the real film crew ("City Island"), Manny Siverio is the stunt coordinator.