The Atomic Cafe Part 2

I still find it amazing that the directors were able to gain access to all the material used in this film. How many pieces of history were used to create this film, I wonder? I know there's a source list at the end, but I'm pretty sure that there were probably multiple items from some sources. It makes you appreciate the work the directors put into the film even more. I can't even begin to imagine the countless hours of research it took to peruse all the historical evidence. Apparently the film took five years to produce. It really makes me wonder how much editing, how much planning, how much experimentation was done in putting the film together.