According to official Twitter account, the Berserk’s 2nd film, Berserk Golden Age Arc II: The Battle for Doldrey will premiere on June 23 in Japan.

The film will run for about 100 minutes and will cover the part of the series dealing with the taking of the important Band of the Hawk stronghold. The first film Berserk Golden Age Arc I: Egg of the Supreme Ruler premiere last February 4.

[Source]