I saw "Signs" on opening night..it was one of the freakiest movies I have ever seen. I walked out of that movie with a feeling I have never had before, and hope to never have again. I can't even describe it. But, I screamed soooo loud in a few parts. Not as loud as this one girl though, who made everyone laugh so I think that drowned out my screaming a bit.
I agree that it is much more than a movie about aliens...it's a movie about faith, beliefs, and family. Definitely made me and my friends think about these things and we had a nice, long discussion afterwards at Taco Bell.