A couple of links:
The full 3 hour and 50 minute ceremony with no commentary (but with stadium effects). Available to view 'in the UK' until January 2013.
http://www.bbc.co.uk/iplayer/episode...emony_no_comm/
For those wanting more information on the ceremony itself, here's 46 page the press briefing document to help people commentate and write about the opening ceremony as a whole:
http://www.london2012.com/mm/Documen...DE_English.pdf
Some pages (e.g. 24) appear twice. The first version was available before the event, the second after.
Alex4D