I liked Signs a lot and 6th sense. Unbreakable was also entertaining.
For those who complain about the aliens... the movie isn't really about aliens... so chill out with all the "Comic Book Guy" logic.
I did think of the water, but then again, there are many substances in concentrated form that would kill us - but we breathe and drink every day (diluted)... the fact that we can smoke cigarettes without instantly dying is proof of that... many of the chemicals in cigarettes, indegest in concentrated form... would kill us 10 times over.
The village was junk, I knew the quasi-twist from the opening scene (no dates on the gravestones)
The new movie is getting HORRIBLE reviews... I'll pass.