http://video.google.co.uk/videoplay?docid=-1322493346942339345&ei=NcnZSoKiLcmb-Aac_6ypCg&q=elegant+universe&hl=en#
It is a four part series, and this is the first, you can find the second, third and fourth on that page aswell.. contact me if you have any queries :-).
This is one of THE most interesting videos I have watched, and that is saying something, they all involve "string theory".
Enjoy :D
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