The 76-year-old retiree spoke weeks after the death of fellow whistle-blowing ex-detective David Durk.
Serpico smiled as an interviewer noted he is ranked No. 41, just behind Lassie, on the American Film Institute's list of movie heroes. He says that's "good company."
The newspaper says Serpico keeps busy trying to finish a book and taking solitary walks.
Serpico and Durk's efforts resulted in front-page newspaper stories and a city panel that recommended reforms to prevent police corruption.