That's a good point. I should've clarified what I meant.

I've never seen Brainstorm (Which I admit is weird, because it's something I should be all over for at least half a dozen reasons), but Galaxy Quest wasn't constantly shifting from aspect ratio to aspect ratio (never seen that one theatrically, though). Same thing with The Grand Budapest Hotel recently. That kind of use of multiple aspect ratios is fine with me - there's a logic behind it beyond "we don't need to record audio for this scene so we can use an IMAX camera" and you're meant to notice it anyway. Finally, perhaps most importantly, it doesn't happen all the time.

Something like, say, The Dark Knight Rises gets pretty jarring, even if they do try to hide it, which doesn't really work for screenings at home. I didn't notice or mind any of that when I saw that movie on the big screen, though.