After He Ends Global Warming, Leonardo DiCaprio To Find JFK's Killer

[caption id="attachment_15358" align="alignleft" width="220" caption="Getty Images"]Leonardo DiCaprio[/caption]

Over the years, many theories have been put forth purporting that there was some sort of conspiracy involved in the assassination of President John F. Kennedy, with supposed participants ranging from the CIA, FBI, KGB, Cuban Exile Groups and a joint Chef Boyardee-Betty Crocker coup d'etat.

Now there's a new historical figure involved… Jack Dawson. Well, Leonardo DiCaprio, anyway. Leo has issued a press release announcing that he will star in and produce a film based on the book "Legacy of Secrecy," written by Lamar Waldron and Thom Hartmann.

The film is being shepherded by Leo's Appian Way in partnership with Warner Brothers, who also made Oliver Stone's controversial 1991 film "JFK," and it is being earmarked for a 2013 release, the 50th anniversary of the assassination.

According to the statement, "DiCaprio will play FBI informant Jack Van Laningham, who obtained the confession of Mafia godfather Carlos Marcello to having ordered JFK's assassination."

Marcello has yet to be featured in a movie, and this will give Leo the chance to play the rat again, as he did in fine style for "The Departed."

It also says "an acclaimed director who has previously worked with Leonardo has expressed interest in directing the film."

As DiCaprio stand-bys like Steven Spielberg, Martin Scorsese and Ridley Scott have full-plates for many years to come, we've narrowed down this "mystery director," who we will refer to as "Director X," to be one of three possible suspects: Michael Caton-Jones ("This Boy's Life"), Lasse Hallström ("What's Eating Gibert Grape"), or Edward Zwick ("Blood Diamond"), the latter probably being the most likely due to the controversial political subject matter of his previous movies.

Recent security footage shot outside Appian Way has revealed a shadowy figure, possibly Director X, shooting footage behind the grassy knoll area…