I seem to see most movies at 30,000 feet (thankfully I'm a metric baby, so all I know about this is that you can't use a ladder to climb back down, and it's inadvisable to open the windows). It does mean I am occasionally forced to watch movies that perhaps I wouldn't choose, which perhaps in no bad thing, since there are only so many movies where shit just gets blown up.
I did enjoy (500) Days of Summer, which I confess I only selected because of the promise of happy little (and potentially adult-rated) thoughts of Zooey Deschanel, which - in my estimation - isn't a bad way to wind through two hours of midair confinement.
It was also blessed with a fine soundtrack, which included the rather lovely 'Us' which I had forgotten to listen to for long time now.
My brain also managed to inadvertently mashup Adventureland and Zombieland into something rather odd that took some subsequent mental disentangling. That said, there's maybe a screenplay deserving of a Hollywood treatment. Boy loves zombie girl, zombie girl doesn't love boy, zombie girl does love boy, zombie girl eats boy's brains, zombie girl gets messily decapitated.