One thing I noticed in all people that didn't like Unbreakable is that they went to the movie expecting some supernatural story and never quite realized they were watching a superhero movie.
I can only imagine what M. Night would do with a Watchmen movie... >sigh<
Unbreakable is, to me, the most realistic superhero movie ever made, and I loved it for it. The marketing, OTOH, was completely off. Here in Brazil they even translated the title with a term that pertains to a magic-induced immunity to injury, from african-brazilian tradition. I once thought of a poster for this movie that had the sillouette of David Dunn in the Security raincoat under that pouring rain, with the tagline "Heroes are real". Anyone noticed how much he resembles the Spectre at times, with the green hood and all?
Signs just had me glued to the chair. I cringed and was spooked and when that first alien showed up in the TV (in Brazil, no less!), my reaction was identical to Joaquin Phoenix's!
And of course, Sixth Sense is waay up there...