Jean Renoir's La Grande Illusion has a memorable Vaudeville scene, but they don't escape, they just end up singing La Marseillaise, and the protagonist Boeldieu ends up in solitary confinement.
For the question of Prof. Debby Koren, regarding the Teshuva of R. Yosef Ibn Lev (Shut Mahari ben Lev, vol. 4, p. 39 ff.): The topic of the responsum is about taxes, and an attempt to convince the Sultan to reduce them. The first term she is asking about is מאטאכי"ש or מתכי"ש which is apparently a quantity of money.
Second unclear term is תשובת הרוקא Ruka (?).
I'm hoping someone has some suggestions for two words in a responsum by R. Joseph ibn Lev that I am stumped as to their meaning. I've had a couple of suggestions, and I have one idea of my own (but I don't know Turkish or Arabic, so it is just a stab in the dark).
The events take place in the Ottoman Empire, The topic of the responsum is about taxes (and an attempt to convince the Sultan to reduce them). The first term I was not able to understand is apparently a quantity of money. It is spelled differently two times, and I have not found it anywhere else.
Escape to Athena (1979)?
It might be "Escape from Athena" (1979).
I may suggest "Soweit die Füße tragen", a miniseries from 1950s and the remake made in 2001, and Peter Weir's "The Way Back" (2010) about Polish refugees from Gulag.
I'm doing a project around The Great Escape from 1963 and looking at other POW escape films. I seem to remember one (but I may be totally mis-remembering) in which the escapees use the diversion of a stage play or variety show to escape underneath the theater after they go behind stage just before the curtain call. I recall they play a record to cover their escape and the last shot is of the stage or curtain with the record playing on and on. I thought it might be The McKenzie Break, which I hadn't seen since 1970, but it's not.
About 2 PDR HE. Australi produced its own version - mainly for use in Staghound Armored cars (post war) and Matilda and Sentinal tanks during the war.
They found that (particularly in the tanks) against Japanese bunker positions they needed a base fused HE round to allow the necessary delay to penetrate the bunker before initiating.
There is a good resource that discusses many aspects of armored warfare from the first days to present times, that is Youtube. Fate would have it that I just watched a video between two of my favorite Youtubers Ian from Forgotten Weapons and "the Chieftain" where they discussed your last question specifically: https://www.youtube.com/watch?v=yF4xxYXwLok @ 45:08.