I LOVE Gravity. This was second time I've seen it (saw it in "normal" non-IMAX 3D last Saturday). The IMAX 3D has amazing depth, which really comes into play in one particular scene -- the downside is that the IMAX process can "break up" if you tilt your head, while Real3D keeps its coherence.

But in any case, the movie is brilliant. Best new movie I've seen this year (but then I tend to see about 8 old movies for every new one!).