The deputy headmaster of my lads' school used to go in my pub. He was a leftie who disliked the film intensely as it was less than flattering about the Soviets. Sad.
As my dad said the first time I saw it, Vienna was still in ruins yet the bars were open until 3 am and later whilst back in this country we were still going home at 10.30pm, 10pm on a Sunday. My uncle found the same thing stationed in Munich at the end of the war, observing this lot lost.
B/W films?
Get em to watch 'it's a wonderful life' or 'Casablanca' to name but 2 out of hundreds