Frank Miller, the famous graphic novelist turned director will be moving from his own work by taking Will Eisner’s classic “The Spirit” and adapting it for the big screen.

“We’re working on the script right now,” commented Miller at the LA premiere of ‘300.’ “We’ve got a good strong story to work with, and we’re hoping to be in production either spring [2007] or [this] fall .”

Miller promises fans of the series that, “it’ll be very faithful to the books.”

Miller also indicated in the interview with IGN that he has one actor (who he wouldn’t name) in mind for the role of the hero.

When asked why he was making the shift from comics to film Miller stated it is because “the movie stuff has been coming so fast and furious that I need to strike while the iron’s hot,” he also revealed that he will be reprising his role as co-director for the upcoming “Sin City 2.”

“Either that or ‘The Spirit’ will be the next thing I shoot,” explains Miller. “Either me and Robert [Rodriguez] on ‘Sin City 2’ or me on ‘The Spirit.’ It all depends on where the pieces are on both projects. ‘Sin City 2’ is scripted, so it’s mainly a matter of Robert’s schedule and all the other production stuff.”

Miller has promised fans that regardless of where his directorial career leads him, he will not stop writing and creating graphic novels. In fact, he is currently working on a new 200-page graphic novel, the contents of which he is keeping a secret at this point.