Documentaries can be hard-going, particularly when the camera is focused on one person for the whole running time, but with a story as gripping as Traudl Junge's, distractions aren't always necessary.
As Hitler's private secretary from late 1942 until his suicide at the end of the war, Frau Junge provides a unique insight into The Fuhrer's private life, revealing him as a dog-lover who "practically never mentioned the word 'Jew'."
Junge struggled with her conscience for many decades after the war, admitting in her last conversation with the filmmakers that she was finally beginning to forgive herself for her naivety - her 'blind spot'.
Her detailed account of Hitler's final desperate weeks in his Berlin bunker make for riveting viewing, and the fact this 81-year-old died of cancer the day after Blind Spot was premiered at last year's Berlin Film Festival, makes the film all the more poignant.