http://nuclearweaponarchive.org/
No films as far as I can recall, but a shed load of pics and further information about nuclear testing.
Some of the stills are really impressive (if you can say such a thing about them), I had one or two of the more spectacular images as wallpaper during the winter last year. mmmm nuclear-toasty...
Did anybody see 'Trinity and Beyond' - the history of the bomb' narrated by William Shatner? A truely interesting program with some very special music perfectly suited to the program. If anyone knows what I'm talking about and can remember where the music came from that'd be great