In the film "Serpico", Frank Serpico, who was a former officer in the largest municipal police force in the United States, was played by which actor?
Frank Serpico: Francesco Vincent Serpico (born April 14, 1936) is a former American New York City Police Department (NYPD) officer who holds both American and Italian citizenship. Frank Serpico:  Much of Serpico's fame came after the release of the 1973 film "Serpico", which was based on the book by Peter Maas and which starred Al Pacino in the title role, for which Pacino was nominated for an Oscar. New York City Police Department: The New York City Police Department (NYPD), officially the City of New York Police Department, is the largest municipal police force in the United States.
Al Pacino