Saw the movie this weekend and liked it.
[My] Answers to conundrums posted above:
-How did woman save Will on the pier?
As is mentioned, there's a portable light on the pier that is visible in previous scenes. It looks like a light for a construction site, and those lights typically have a built-in generator.
-How did the one grenade do so much damage?
I didn't pay much attention earlier, but if the lab were filled with flammable chemicals used in his research, the grenade could have touched them off. Plus, explosives are deadlier in confined spaces. It's still Hollywood-ized but perhaps a tad more believable.
-Explanation for "super zombies".
I read that the writers took the effects of the virus that produced the zombies from the effects of PCP. There are plenty of stories of PCP users doing amazing things that seem superhuman. Might not explain tipping over the Explorer by two of them but does explain some of the strength issues.
-Where did the deer and lions come from?
I read in a review that the implication is the animals came from the zoo.
My problems with the movie:
-Why assault rifles? It would seem to me that if you want to take out zombies, you should use shotguns. You don't have to aim as much, and the effects are more devastating especially considering the 5.56mm round from the M4's. I would think he would have put shotguns IN the house especially given the close quarters.
-UV lights out in the open?? It would have made much more sense to armor the light emplacements with metal grating and anchor them in the ground rather than having them exposed like they were. The idea of mounting them up on the roof is great. The guy had three years to fortify his home, and that's all he came up with?