Glad you enjoyed the play. How did your daughters like it? (You said they weren't too keen on the idea.)
I grew up with that play. The soundtrack was played at family gatherings, we sang the songs at summer camp. I didn't see the movie until I was a teenager, years after it first came out, but the people were so like the people in my (East European Jewish) community, that it felt very familiar.
I haven't seen it in years. I'll have to see it this winter.