I envy your IMAX experience. I wish I had seen it in 3D.
I think most of my problems with it - and they're minor, easy-to-put-aside problems - all stem from the script being a little hamfisted in terms of dialogue. It occurs to me that may well be a language thing, otherwise Alfonso and his bro don't have a golden ear for dialogue. It's a little crazily on the nose in a few parts, and yeah, contains one of the most glaring "as you knows" in recent memory. (Which was unnecessary, really, too. If I recall, it was "as you know, your mission is blank," and her mission doesn't matter in the movie beyond the fact that she's a novice in space.) In any case, I can set that aside.
I do not understand The Ballistics of Clooney. When he's at the end of the rope, and has to disconnect from Sandra... what the fuck is happening there? They're not in atmo, and they're moving at the same speed. No bouncing, even, if I recall, they're at a totally matched velocity. (With each other, and the space station.) What in God's name is pulling him away from her so strongly that he needs to disconnect to keep from breaking something? (And for that matter, why does he float away?)
Nitpick, I guess, but it took me out of it for a moment.
My god this movie is gorgeous. I hope the Blu-Ray has a four-or-five hour documentary on it, and I look forward to this VFX team getting the Oscar win.
Also, been a long time since I walked out of a movie theater going "thank god," and that's nice, too. And bless this movie for bothering to have a theme.
I have a tendency to fix your typos.