Trivia

Al Pacino loved being able to use all of the rich Mafia slang throughout the film. Writer Paul Attanasio captured mob dialect so accurately because he had Joseph D. Pistone's wiretaps.

Joseph D. Pistone claimed that the movie is 85% accurate. "It portrayed the mob the way it is."

Al Pacino was originally going to play Brasco. When he switched to Lefty, he recommended Johnny Depp.

The family scenes were shot last. According to Mike Newell, "It was like making a different movie."

In an interview, Joseph D. Pistone said that he didn't see his family for at least two years while he was undercover.