While the posters may contain spoilers, it does reflect on the final movie in the Golden Age Arc, Berserk Golden Age Arc III Descent. The trilogy of movies are an adaptation of the manga, which the 1997 anime series did as well. The final movie has gotten a R18+ rating in japan. The final movie itself will be approximately 2 hours and 15 minutes long, hopefully doing justice to the manga.
Berserk Golden Age Arc III Descent will arrive in cinemas on February 1st 2013.