"The Twilight Saga: Breaking Dawn" producer Wyck Godfrey recently touched on the challenges of adapting the fourth book in Stephenie Meyer's vampire juggernaut for the big screen.

Between the book's hefty size and controversial plot, Godfrey and the film's creative team are still reviewing their options. However, the shoot should start in Vancouver this fall. But will the book's adaption require one or two installments?

"It's a work in process," Godfrey said in an interview Friday with the LA Times. "The issue [of whether there will be one or two movies] is not going to be resolved until we get the full treatment and see whether it's organic. If it's not organic, I don't think it will be done, and if it is, it will be. It really has to do with how much level of detail from the books there is, with all of these new vampires that appear in 'Breaking Dawn,' the whole section about Jacob ... It's a very long single movie if it does become a single movie."

Another concern facing the "Breaking Dawn" team is who will step in as director.

"I think everyone would be happy and excited if he ['New Moon's' Chris Weitz] came back, but I don't think it's going to happen," Godfrey said. "... but right now, we're just focused on the treatment and getting that right. At that point, we're going to see who's available and who's appropriate.

"It's such a complicated book because you have the emotions and the intensity of the love story -- so you need somebody who's just a wonderful director of actors -- and yet it's really complicated from an action and visual effects standpoint. They've got to have both tools in their kit."

Melissa Rosenberg, who's penned all the "Twilight" movies, is currently working on the "Breaking Dawn" script.

See more of Godfrey's interview here.

The third film in the series, "The Twilight Saga: Eclipse," hits theaters June 30.