Finally got time to watch this beast, and looooooooooved every minute of it. So freakin good.
Not really much to say, you guys have kinda covered it all, and I agree with most of it except for the sentiment that the dreams needed to be more wild and crazy, like normal dreams. Unless you are also suggesting that we change the way the universe is set up (Which is valid, i guess...but then we are just quibbling over artistic ideas), it does nt follow that the "dreams" should have been more wild and crazy. It's really all spelled out in the movie, or maybe that's just the way I put it all together, anyways, this is how I see it.
Basically, the "dreams" that extractors enter are not true dreams, in that they are very VERY tightly controlled to the maximum extent that they can be by the Architect; This is the entire point of the architect, he is there to keep the entire thing normalized. Anyways, in a normal dreams we basically hand our brains over to subconscious and tell it to have fun and try not to break anything, hence the bizarro what the fuck nature of most dreams. But this isn't the case with extractions (Or in this case Inception); in these, the subconscious mind of the dreamer is instead replaced with the very conciseness mind of the Architect. But obviously the mind is not completely predicable and oddities are bound to happen when you start messing with placing someone into another person dream, and hence we get the screaming mobs, the minds self defense.
Now with all that said, would I have loved to see the giant space squid fight a pack of rabid panda tigers? Hell yes!! Except that's not the movie Nolan wanted to make, so he built himself a universe in which these laws make sense and are justified, and god dammit he sticks to them. You can't fault the guy for that.
On the hand, as far as the kicks go, I honestly have no clue. The best I've got so far follows:
Basically I think that the external stimuli only works one level down (On those dreaming as it were), Real Life affects Yousef's, Yousef's affects Arthur's, Arthur's affects the Snowy place and the snowy place affects limbo.
And I am pretty sure, that you can only be kicked from the level you fell asleep in, and then once in that level you can be kicked in the next level up that you fell asleep in etc. Or in this case they plan the simultaneous kick so that they would all be pulled straight up into real life.
Although I'm fairly certain that gets broken a few times...(I still have no idea whats up with Page committing suicide, I'm not really sure how that helps anything.)
Yeah, that's the best I got. Now that could be due to the fact I just pulled a 12 hour animating sprint or the fact that I just don't know. Meh, we'll find out.
(EDIT: @Phi, the snow world didn't notice the van hitting the barrier as a physical thing, they worked it out from the music JGL was pumping into their architect to give them the cue (Hence the comment "No, It's to soon!") so I still hold it only works one level down. Also the inner ear part has nothing to do with faling in the dream, it has to do with the idea, that the inner ear still works in the "real" body, so that when that gets kicked the body feels it, freaks out and wakes the body up from the dream)