This series is a direct continuation of the Golden Arc trilogy of 'Berserk' films. These films are a condensed version of the 1997 series that was based on the manga of the same name.
On [5/6/2021] The author of the "Berserk" series, Kentaro Miura has passed away. The series has been ongoing since Oct. 1989 to date. The Author died of acute aortic dissection.
Some shots are directly copied from the manga.
The Lost Children arc from the manga is completely cut from this adaptation despite its importance by explaining why Guts was so fatigued before the Holy Iron Chain Knights attacked him. This was instead explained when the carriage Guts got a ride from was ambushed by demons.