Margot Robbie explains why she denied using a robe for a key scene in The Wolf of Wall Street. Collaborating with iconic director Martin Scorsese, Robbie saw one of her first breakout roles in The Wolf of Wall Street. The three-hour-long film told the tale of a real-life man named Jordan Belfort who got his start as a wealthy stockbroker before falling into a life of crime. In addition to Robbie, the film featured a leading cast including Leonardo DiCaprio, Jonah Hill, Matthew McConaughey, Kyle Chandler, Rob Reiner, Jon Bernthal, and Jon Favreau.