"Radio Bikini" is fascinating. It's a documentary, about an hour long, and tells the story of the 4th and 5th atomic bombs ever exploded. The name "Radio Bikini" comes from the Bikini Atoll where this took place, and the US Military radio staton set up on Bikini during the 1946 atomic weapons research project. This film was nominated for an Oscar in '87 for Best Documentary. Quite an eye opener.

I don't believe I've seen it