It was Celebration Night around the world, and certainly in my little part of it where no less than 5 theatres within' a 25 minute drive were showing Celebration Day. I must say, minus a few quibbles, it was as good, better, than I hoped for: a magical recreation of a magical night.
The movie is the concert, full bore. A few edits to keep the pacing going, a few small parts of the show where cut for brevity. But ultimately, it was the show. They didn't mess too much with the music, although they tried to fix the little mess in "Dazed and Confused when the rhythm section seemed to not be connecting." But otherwise it was the show, just the show, and nothing but the show. On that note, here's what I said about the show at the time:
...I won’t equivocate: this was a great concert by a great band that was in great form. I simply can’t imagine how good these guys would be after a few shows to get the groove going. If they do tour, and it would be a crime if they don’t, I want to see them again mid tour. They would be an unimaginable force of music.
Too bad about that last bit.
Now the quibbles. First, I would have set the stage, given the movie some context. An intro in which the camera is outside the O2 before the show, so everybody understands it was London. Further I would have replaced the old Tampa TV news clip that started the show with one from the O2 show. My feeling watching it was, if I didn't know better, I'd think I was seeing Led Zeppelin in Tampa in the 70's.
Others have commented on the 35mm footage used in the movie, and it was too much. It's a cool effect used half a dozen times through the movie: they used it 3 or 4 times a song. Way too much. And the film was edited to MTV standards, which means it was far to jumpy.
But again, these are mere quibbles, disagreement over choices, not commentary on the performance itself. The truth on the performance itself is, it holds up extremely well, and Celebration Day is a must see movie for music fans, and a must see more than once for Led Zeppelin fans.