The Wolf of Wall Street (2013)

Director: Martin Scorsese

Cast: Leonardo DiCaprio, Jon Favreau, Matthew McConaughey

Martin Scorsese, and his muse, Leornardo DiCaprio's next feature is based on a true story about the rise and fall of a stockbroker. Leonardo plays Jordon Belfort, who ended up serving 20 months in prison for not cooperating in a huge 90s securities fraud case which involved Wall Street corruption, banking corporations and, of course, the Mafia.

Here's a trailer...