Question: 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?
Sentence (from "Frank Serpico"): He is known for whistleblowing on police corruption in the late 1960s and early 1970s, an act that prompted Mayor John V. Lindsay to appoint the landmark Knapp Commission to investigate the NYPD.
Relevant evidence: No