I don't remember ever watching a film with Denzel Washington which wasn't good. And same with Unstoppable. The acting of both actors, Chris Pine and Denzel Washington, is outstanding! They got you so much into the movie, that you forget where you are.
As for the rest movie?! A-m-a-z-i-n-g! A really good action finally after a long time. It makes you so nervous like you are in there! I was like "holy shit...oh my god oh my god! no no no no" almost all the time! It has so many events that change how the story will go, and the whole things seems so real. I'm so out of words, that i can't described it. That's my worst movie review ever.
You know something...just watch it XD