So the opening ceremony.... I approve.

For me, the main points were the drumming section with the good few thousand drummers, the lime-green LED-covered guys who did the Dove shape before swirling together; the globe and columns rising out of the ground, and of course the torch-lighting ceremony, truly the most spectacular (or just excessive) means of doing so yet.

Some parts were a bit wtf-y, like the use of children in the classroom, I really didn't see the significance.