The big screens, which showed fine detail and occasional video in the musical interludes, provided a close-up view of the facial expressions and, in particular, to Tamara Rojo's technical "potion scene".
But it also provides a rare, detailed look at workers' frantic efforts to save the plant, portraying (in measured technical language) scenes worthy of the most gripping disaster movies.
In two years of training Mr. Polly shed 65 pounds and went on to win an amateur fight in Las Vegas by technical knockout, a scene recounted with hypnotic clarity in the book.
The musicians were right on cue and the actors displayed emotion, projected their voices, sang and danced without inhibition while the technical crew handled scene changes, lights, sound, hair, make-up and costumes.
So I'd like Steve now to just give you a little technical behind the scenes on exactly what.
"We have a technical team on the scene, and we're still waiting to hear back from them," she said.
Labour's David Miliband, who was there, tweeted: David Miliband (@DMiliband) Amazing scene at technical rehearsal for Opening Ceremony.
* Since we're on the subject of dramatic tension: despite its technical wizardry, the fight scene you call the "Burly Brawl," with all those Agent Smiths, is still lame, and for a simple reason.
While we watch the repetitive technical rehearsals for a scene in which Maskell's stuntman slams a dowdy family saloon into another dowdy family saloon, he talks about Arby.
While on most aspects of testing, the tester need not know the technical details behind the scene however this is where testing Big Data Technology is so different.
