Martin Scorsese and Leonardo Dicaprio will team up again in The Wolf of Wall Street. The story is based on the as-yet-unpublished autobiography of a Long Island stockbroker who was sentenced to 20 years in prison for refusing to cooperate with the FBI in a 1990s securities case. The case dealt with mob infiltration and the corruption of the corporate banking world on Wall Street. Scorsese and Dicaprio have previously worked together on The Departed, The Gangs of New York and The Aviator.