Almost 10 years after he became an international sensation, Derek Zoolander is ready to strut his stuff down the catwalk again - and it seems the man behind Blue Steel has gotten a little gray.

According to actor Justin Theroux, who co-wrote the script for the "Zoolander" sequel with leading man Ben Stiller, the new film will find aging mannequins Zoolander and Hansel (Owen Wilson) on the verge of hitting 40 and no longer top models.

"[W]e start off with them in a pretty bad place," Theroux told MTV at New York's Comic-Con on Saturday. "They're about to ring 40's bell. They have to claw their way back into the fashion industry in some way or another."

Theroux, who expects the new "Zoolander" movie to hit theaters in 2012, added that Will Ferrell's villain Mugatu plays a role in the latest plot and that there's even a part for actor Jonah Hill.

""Fingers crossed, anything is possible in Hollywood, but I think you're going to see Mugatu," Theroux said. "There are a couple new villains that step onto the stage, which we are all very happy about. And yes, Jonah is the inspiration for one of them."