Robert Pattinson, Stunning, Erotic in Bel Ami Trailer (watch!) 1Robert Pattinson is seething with lust in an explosive portrayal of Guy de Maupassant’s scandalous protagonist in a leaked trailer of “Bel Ami,” a movie about decadent French society, co-starring Uma Thurman, Christina Ricci and Kristin Scott Thomas.

This could be the film where Pattinson establishes himself as an actor, on par with Marlon Brando, James Dean and Richard Burton.

He exudes lust, desire and ambition as a “penniless” soldier who’s determined to find his place in French society by seducing the wives of powerful men at the center of Parisian society.

The film is about the corrupt rise of Georges Duroy, who becomes one of the most successful men in Paris by manipulating powerful, intelligent, and wealthy mistresses.

The period piece has been in the can for quite awhile, but is finally set to premiere in the fall, or so the latest reports claim.

Pattinson shot the film before “Remember Me” and “Water for Elephants,” but no one has been able to pin down a solid release date.

Which is odd, given the all-star cast, not to mention one of the hottest actors in Hollywood at the moment.

Bel Ami is a Redwave Films production in association with Simon Fuller’s new company XIX, Protagonist Pictures and RaiCinema.

They are no slouches, so they could be waiting for the Twilight hype to die down from “Breaking Dawn, Part 1” and for Rob to block out some time to promote the film.

Thurman recently praised Pattinson’s performance: “He’s incredibly concrete in his presence on the set and obviously very handsome,” she told MTV.

“He’s a very nice person and he’s sensitive,” she added. “He’s present. He’s a really good actor.”

The trailer for the film was posted today (July 22) and quickly disappeared. But you can check it out below.

“Bel Ami” is scheduled to premiere in late 2011.

Robert Pattinson, Stunning, Erotic in Bel Ami Trailer (watch!) 2