The introduction of the NHS/Great Ormond Street Hospital at the 2012 London Olympics opening ceremony presents some very interesting 'coincidences' including dancing nurses..
What isn't mentioned by whoever did this video was the intro music, Tubular Bells by Mike Oldfield, more famously used as the theme for The Exorcist.. Because every satanist would use this music to introduce a children's hospital..
Also used is the rift from the movie Contagion when Voldemort rises above the arena.
Note a holographic virus superimposed over the stadium too, I remember seeing that when it was on TV at the time and thought it was very strange..
Now we know why.
https://www.youtube.com/watch?v=diXoPkLbEl0&feature=emb_err_woyt