I was trying to remember, during the first half of the review, why Robert Donat’s name rang a bell; Andrew watched The Thirty-Nine Steps a while back and I was curious enough about the lead to look him up. I think his wikipedia article mentions that he was almost dropped from Knight Without Armour when his chronic ill-health delayed filming, but that Dietrich threatened to quit if the producers threw her co-star under the bus. Good for her.