We watched Days of Darkness today. It's another zombie movie - in case you haven't noticed, we watch quite a number of zombie movies :) This one had an interesting idea as to the cause of the zombie infestation but unfortunately the movie itself wasn't all that well-made. There were a few things that were supposed to be scary but were more funny than scary. Still, it's worth a watch just to get a different perspective on zombies.
I've always sort of wondered how zombies could live once they'd exhausted the supply of people (and other animals) on the planet. Since they don't die, how would they live? Regardless of whetehr they need to eat, they sure like to - so what happens once there's no food for them? They don't eat each other because they're not cannibals. Would there come a point where the zombies deteriorate enough that people could kill them off?
None of the movies we've seen really address zombie life after the initial human settlements are overrun. Do they stay in packs or alone? I also think it's sort of funny how zombies are always shown to be wearing all of their clothes. They're not exactly careful about what they do so it seems to me that eventually the clothes would be little more than rags and not complete clothes. Also, since zombies eat they must have some sort of digestion system (unless of course it's a perfectly efficient, closed system), and we never see that.
Clearly there's a lot more to know about zombies than we've seen so far.