-Meg has a dislocated knee. John pops it back into place. That's the last we hear or see of it! Only a short time later, Meg even outruns John when they're running from the assassins!
-Also, John gets shot in the shoulder but it doesn't seem to bother him much!
That's the first rule of action movies. Any injury that is not life immediately fatal can be quickly shrugged off. Getting shot in the chest will automatically cause death, but getting shot in the arm or leg will never break a bone.
Nor will getting shot in the arm or leg involve a major artery that will cause you to bleed to death unless its quickly treated, unless of course it allows a character to die whose death will inflame the passions of the hero and push him to greater efforts to get the bad guys.
I just saw a Special Edition DVD of this film at a store (and as usual, didn't buy it--I had a similar problem on the 'Mad Max' boards). It has deleted scenes and other stuff. I KNEW there was a scene in the trailer htat wasn't in the final release! Has anyone seen this version?