An Honest Trailer for Unbreakable

The 2000 film Unbreakable has Bruce Willis as some kind of comic book superhero who doesn't wear a costume. And since it's an M. Night Shyamalan movie, it has an unexpected twist at the end ...or does it? I still haven't seen Unbreakable, and after watching this Honest Trailer, I realize that I still don't know what it's about.