Magic Resistance we already know about.
Backwards flying dragons is a minor issue compared to that.
Also: Followers have a hidden inventory that will get +1 standard equipment every time that follower gets dismissed. So after a dozen to 20 hires/dismissals that follower will have something like 12 to 20 Hunter's Bows and/or other low equipment (which you cannot see or get rid of - at least on PS3/360) and will be unable to carry anything for you! I know there is a trick to command your follower to pick stuff up, but that in itself is a bug! You shouldn't have to fix a bug with another bug...
Wait there is more! Followers don't scale with player level (I guess we knew that already)
Oh and by the way, the "Master Criminal" trophy / achievement doesn't work for all non-english versions of the game, because the game doesn't keep track of every individual region, it only shows total and highest bounty.
And these are only the ones I experienced myself, I bet there are lots and lots of other fun bugs for you folks out there to explore. Oh joy!
