I first saw this film when I was attending university back in 1959. It was one of the first outstanding documentaries on Nazi Germany. Even though some of the scenes are staged, bringing it somewhat into the "docudrama" realm, they are well integrated. I will never forget the writers' translated quotes from the German poet, Heinrich Heine, who was prophesying Germany's descent into barbarism as far back is the early 19th century.
The effective and beautifully written narration for "The Twisted Cross" is eloquently delivered by Alexander Scourby with his mid-Atlantic English sound (even though he was born in Brooklyn).
I believe this 50 year old documentary is still as effective today as it was then.