What was once a rumor is coming closer and closer to confirmation as the press tour for filmmaker David Fincher’s latest film, The Curious Case of Benjamin Button, approaches in December. A source close to Fincher, Producer Bill Mechanic, says that the rumor Fincher is adapting graphic novel series Torso for the big screen is more or less confirmed.

Mechanic says, “If everything goes according to schedule, it would be the next thing up.”

Torso is a graphic novel series that tells the story of the “torso” murders that took place in Cleveland in the 1930’s.

Mechanic continued, saying that they have a screenplay, penned by Ehren Kruger (The Ring series, Transformers: Revenge of the Fallen) and are “waiting for Paramount to decide to make it.” He then said that the film won’t follow the graphic novel exactly and compared its changes to the changes made in the film version of Fight Club versus its original novel.

Through the course of the interview, Mechanic also confirms that Matt Damon is set to play Cleveland’s safety director Eliot Ness in the film.

According to the comic series, written by Brian Michael Bendis, dismembered body parts start washing up near Lake Erie and Ness investigates, never solving any of the cases.

The Curious Case of Benjamin Button comes to theaters on Christmas Day 2008.