Ir you've never seen it I highly recommend The Day After Trinity, a documentary produced for PBS by Annenberg/CPB. It was at one time available in my little small-town public library on VHS with a number of other really good ones like Atomic Cafe and Threads. I used to show parts of it to my physics students.
https://en.wikipedia.org/wiki/The_Day_After_Trinity
We saw that in our high school physics class. Don't remember that much about it other than Frank Oppenheimer was interviewed and I believe he was chain smoking during his interviews.