The road to playing Naomi Lapaglia, the fictionalized version of Jordan Belfort’s second wife Nadine Caridi, was paved with extreme professional hazard. Robbie was competing against established names who had already mastered studio-friendly chemistry reads. When she entered the audition room opposite DiCaprio and Scorsese, she knew politeness would guarantee obscurity.
During an improvisational scene where Belfort and Lapaglia scream at each other, DiCaprio challenged her to step forward and kiss him. Robbie hesitated for a split second, calculated the odds, and made a career-altering choice. Instead of delivering the kiss, she stepped into his space, delivered an open-palmed slap across DiCaprio's face, and screamed, "Fuck you!"
Silence hung over the room. Robbie later recounted that her immediate internal reaction was panic, fearing an assault charge or immediate blacklisting from studio lots. Instead, Scorsese broke the silence with laughter, and DiCaprio asked her to hit him again. The spontaneous outburst demonstrated the exact combustible, defensive pride Naomi Lapaglia required. Scorsese hired her immediately, recognizing an actor who refused to shrink behind the shadow of Hollywood royalty.