I know this isn't anime, but just like with Sin City, I just have to mention this because I'm such a huge Frank Miller fan.
According to ICv2, Frank Miller's historical epic 300 is going to hit the big screen some time in 2006. 300 is "a ferocious retelling of the ancient Battle of Thermopylae in which King Leonidas ... and 300 Spartans fought to the death against Xerxes and his massive Persian army. Facing insurmountable odds, their valor and sacrifice inspire all of Greece to unite against their Persian enemy, drawing a line in the sand for democracy." [Source: 300 Production Blog] And as an interesting piece of trivia, the graphic novel is actually an adaption of a 1962 movie called The 300 Spartans.
According to the ICv2 article:
Zack Snyder, director of the film adaptation of Frank Miller's 300 graphic novel, has completed nine weeks of filming and expects to have wrapped up principal photography on the movie before the end of January.
In several interviews concerning the making of the 300 film, Zack Snyder has talked about his desire to recreate the visually rich tapestry Miller fashioned for his retelling of the legend of the 300 Spartans, who held off the Persian hordes at Thermopylae in 481-480 BC, and from the looks of the early stills that have been released from the film, it will hew closely to Miller's vision.
2006 looks to be the year of Miller as the Sin City 2 movie is also scheduled for next summer. I love it!