According to Motto, Perscy wrote and directed the film "Do you think I am ridiculous?" at the request of Scorsese.
The word "fuck" is mentioned 246 times in the movie, most of which came from Joe Pacesi.
It is said that Jimmy Burke, the real-life gang boss at the time, was very happy to have Robert De Niro play him, and he still called him some opinions in prison. The original author and screenwriter Nicholas Pelki denied this. He said that De Niro and Burke had never talked, but admitted that there have always been people who know the characters well to participate in the filming work.
Director Martin Scorsese's mother plays Tommy's mother, and she also performed in the dinner scene. Scorsis' father plays a prisoner who puts too many onions in tomato juice.
Jimmy Burke, the prototype of Jimmy Conway in the movie, was released from prison in 2004, but he died of lung cancer in prison in 1996.
Joe Pesci’s mother watched the movie. She told her son that the movie was good, and asked him if he had to say so much curse in it.
The oil painting Tommy's mother showed Tommy and them was based on a photo in the November 1978 issue of National Geographic magazine.
Before the start of the movie, Ray Loita spent several months in contact with the prototype Henry Hill in order to portray the character more accurately. After the movie was released, Hill said in an interview that many gangsters asked him how he could tell their stories like he did in the movie. Obviously, the gangsters all watched and liked this movie.
The scenes of Tommy and his mother at the dining table are basically improvisations by actors, including Tommy asking his mother if he can borrow her dinner knife, and Jimmy's comments about "kicking".
