I'm with you Admiral2
, the whole opening sequence was (pardon the pun) Amazing! OK, so it wasn't technically the opening sequence, but it sure got the movie off to the right start. And with seeing it in IMAX 3D, there was at least one moment where I felt like Spider-Man, and got that sensation of falling.
Also, when the two planes nearly collided did anyone else flinch at that moment? As if the planes were coming towards you? I would have chalked it up to me just being silly, but one of the guys I went to the movies with flinched at that same moment too.