Martin Scorsese may be challenging Dwayne "The Rock" Johnson's title for Busiest Man in Hollywood.

According to Deadline.com, Scorsese is set to team up with his current male muse, Leonardo DiCaprio, on "The Wolf of Wall Street." The film is based on the memoir by Jordan Belfort, a former stock broker who wrote about his successes, hard partying and eventual conviction for security fraud and money laundering.

"Wolf" will be the fifth collaboration for Marty and Leo, who previously worked together on "Shutter Island," "The Departed," "Gangs of New York" and "The Aviator."

For those keeping count, this film is the fourth project Scorsese has in the works. In addition to "Wolf," Marty is set to direct crime drama "The Snowman," based on the Jo Nesbo book; the period piece "Silence," starring Daniel-Day Lewis; and a Frank Sinatra biopic.

Martin Scorsese is currently coming off a Best Director Golden Globe for his work on 2011's "Hugo." "The Wolf of Wall Street," written by "Boardwalk Empire" and "Sopranos" veteran Terrence Winter, currently has no release date.

[via Deadline]