'J. Edgar' Trailer: Leonardo DiCaprio In Clint Eastwood's FBI Director Film (VIDEO)

Well, he's certainly not a teenage idol anymore.

The former teeny bopper heartthrob of "Titanic" fame has spent the past decade making prestige films with some of Hollywood's greatest directors, teaming up with Martin Scorcese, Sam Mendes, Christopher Nolan, amongst others. He's got three Oscar nominations to show for that impressive body of work, and now, he's teaming with Clint Eastwood in his most ambitious project.

In "J. Edgar," DiCaprio and Eastwood are diving deep into one of America's most intriguing and controversial characters, FBI founder and director, J. Edgar Hoover. DiCaprio plays the secretive, manipulative and brilliant operative who ruled US intelligence with an iron fist, going from his younger days and donning prosthetic makeup to take on the look of the ragged, troubled older Hoover.

Judi Dench and Armie Hammer lead an impressive list of co-stars. The first trailer for the film has been released, check it out below.