Berger began working in the German film industry during the Weimar Republic.

At Decla-Bioscop and later UFA he established a reputation as a leading director of silent films.

He was a member of the jury at the 6th Berlin International Film Festival.

[2] Berger also translated a few plays of Shakespeare, including Cymbeline, Hamlet, and Timon of Athens.

[3] His elder brother was the set designer Rudolf Bamberger who was killed in 1945.