Imagining a great film about a guy who lived a very long and full life...

"Until the start of the Second World War, Otto Frank's life was as soothing and wrinkle-free as freshly laundered linen."

Rachel Cooke

"Answers from the attic" | Biography books | The Guardian

https://www.theguardian.com/books/2002/jul/14/biography.classics

I'm not sure really if that's true though.

"Otto Frank in the First World War"

https://www.annefrank.org/en/timeline/2/otto-frank-in-the-first-world-war/

"Otto Frank" | Americans and the Holocaust

https://exhibitions.ushmm.org/americans-and-the-holocaust/personal-story/otto-frank