What You Never Knew About the Mob Classic ‘Goodfellas’

Though Martin Scorsese co-wrote the script for Goodfellas with Nicholas Pileggi, he never treated it as sacred text. Rehearsals became playgrounds for experimentation, where actors were encouraged to stray from the page and feel their way into character.

That openness birthed one of the film’s most legendary moments—the “Funny how?” scene. Joe Pesci improvised the tension, Ray Liotta reacted in real time, and the result was electricity on film. Scorsese’s willingness to let the story breathe through his actors proved vital. Sometimes, the most unforgettable lines aren’t written—they’re discovered in the moment.