Goodfellas – “Funny How?”
Despite his close attention to detail, director Martin Scorsese also sometimes encourages moments of improvisation while filming. In the case of Goodfellas, he allowed actor Joe Pesci to go off on an extended riff in which his character pretends to be insulted. He complains about being treated like a clown until he finally reveals that he’s been kidding. The scene was funny but also a clear indication of how impulsive and dangerous Pesci’s character could become.