Sam Mendes has long been attached to an adaptation of Garth Ennis and Steve Dillon's comic series Preacher, but there hasn't been a lot of news regarding the state of that project. Mendes recently spoke to MTV while promoting his latest film Away We Go, and while doing so, he discussed the state of the film.

Mendes says that John August is moving along fairly well with his first draft at the script. "He's doing pretty well," Mendes said, "He's about halfway through. There's a long way to go yet, but I'm very, very hopeful. I think it could be amazing." Considering that the story went through several graphic novels, the question then becomes how much do you try to put in the first Preacher film? And do you set it up for sequels? Mendes said that, while he can see a franchise coming out of the movie, he believes that you need to make it self-contained.

"You have to try and get one really good and then, if you're lucky, you can make a second or a third," said Mendes. "You can create something that's going to run. But I think that there's certainly more than enough for one good movie and plenty left over."

Mendes also says that, at this point casting is a long way off. Nevertheless, he is excited about casting the characters, pointing out that the story of Preacher has some "real good roles in there."

Preacher is an adaptation of the popular 1990s Vertigo series created by Garth Ennis and Steve Dillon. The comic series told the story of Jesse Custer, a down-and-out Texas preacher possessed by Genesis, a supernatural entity conceived by the unnatural coupling of an angel and a demon. Given immense powers, Custer teams up with an old girlfriend named Tulip and Cassidy, a hard-drinking Irish vampire. The trio set out on a journey across America to find God -- who apparently had abandoned his duties in heaven -- and hold him accountable for his negligence.