I liked the meta joke when Cottonmouth asked what could do they do to someone with unbreakable skin, only to be bombarded with a way of effectively killing him (drown him, poison him, burn him).
I'm up to the same point as you.
I watched Anthropoid last night at the cinema, I can recommend it although the foreign accents put on by English speaking actors feels a bit Allo Allo at times. It was about a Czechoslovak plot to kill an SS officer in Prague.